WEBVTT 00:00:00.000 --> 00:00:03.220 When you sit down in the driver's seat of a well 00:00:03.220 --> 00:00:05.580 -designed car, like, you immediately look at 00:00:05.580 --> 00:00:07.299 the dashboard. Oh, absolutely. It's the first 00:00:07.299 --> 00:00:09.279 thing your eyes are drawn to. Right. And there 00:00:09.279 --> 00:00:11.580 is this expectation of style there. You know, 00:00:11.580 --> 00:00:14.160 you want the polished trim, the glowing dials. 00:00:14.400 --> 00:00:17.000 But fundamentally, that dashboard is a critical 00:00:17.000 --> 00:00:19.519 interface. I mean, it's designed to tell you 00:00:19.519 --> 00:00:22.120 how fast you're going, how much fuel you have. 00:00:22.399 --> 00:00:24.559 Basically to keep the entire machine from just, 00:00:24.559 --> 00:00:26.660 you know, falling apart while you hurl down the 00:00:26.660 --> 00:00:29.920 highway. Exactly. Every single indicator on there 00:00:29.920 --> 00:00:32.960 has a strict functional purpose. But then you 00:00:32.960 --> 00:00:35.740 look at a guitar, you see those shiny decorative 00:00:35.740 --> 00:00:38.399 bits running up the neck or tracing the outer 00:00:38.399 --> 00:00:40.320 edges of the wooden body, and if you're like 00:00:40.320 --> 00:00:42.100 most people, you probably just look at them and 00:00:42.100 --> 00:00:44.700 think, ah, all that looks cool. Which is a totally 00:00:44.700 --> 00:00:47.259 fair assumption. They are designed to look cool. 00:00:47.460 --> 00:00:50.659 They are. But today, we are going to completely 00:00:50.659 --> 00:00:53.539 upend that assumption for you. Welcome to the 00:00:53.539 --> 00:00:56.039 deep dive. We've been pouring over the source 00:00:56.039 --> 00:00:58.759 material on guitar inlays, and our mission today 00:00:58.759 --> 00:01:01.320 is to uncover how these shiny little details 00:01:01.320 --> 00:01:04.359 are actually like this incredible master class 00:01:04.359 --> 00:01:07.420 in combining aesthetics, brand identity, and 00:01:07.420 --> 00:01:10.099 even hidden structural engineering. Yeah, what 00:01:10.099 --> 00:01:13.180 seems like pure ornamentation right out of the 00:01:13.180 --> 00:01:16.040 gate is actually doing a massive amount of heavy 00:01:16.040 --> 00:01:18.040 lifting behind the scenes. Right, the craftsmanship 00:01:18.040 --> 00:01:20.159 alone is staggering, but the engineering is what 00:01:20.159 --> 00:01:22.219 really makes it brilliant. It really is. It's 00:01:22.219 --> 00:01:24.629 one of those beautiful historical acts. where 00:01:24.629 --> 00:01:27.709 human psychology completely overpowered practical 00:01:27.709 --> 00:01:30.930 logic in some places and then subtly reinforced 00:01:30.930 --> 00:01:32.890 it in others. So if you are listening to this 00:01:32.890 --> 00:01:34.530 and you're looking over at that old acoustic 00:01:34.530 --> 00:01:36.250 guitar sitting in the corner of your room, I 00:01:36.250 --> 00:01:38.189 promise you, you will never look at it the exact 00:01:38.189 --> 00:01:41.049 same way after this. Not a chance. So let's start 00:01:41.049 --> 00:01:43.310 with the physical reality of what an inlay actually 00:01:43.310 --> 00:01:46.530 is. Because we see mother of pearl or plastic 00:01:46.530 --> 00:01:50.030 embedded in wood perfectly flush. How are luthiers 00:01:50.030 --> 00:01:52.069 actually getting those pieces in there without 00:01:52.069 --> 00:01:54.750 destroying the instrument? So stripped down to 00:01:54.750 --> 00:01:58.790 its core, an inlay is basically just contrasting 00:01:58.790 --> 00:02:01.430 material set into a carved cavity on the instrument's 00:02:01.430 --> 00:02:03.989 surface. Historically, and you still see this 00:02:03.989 --> 00:02:06.810 on high -end models, builders use nacre, which 00:02:06.810 --> 00:02:09.449 is mother of pearl or abalone shell. Beautiful 00:02:09.449 --> 00:02:11.629 stuff. Very beautiful. Though today you also 00:02:11.629 --> 00:02:13.509 see a lot of high -grade plastics, acrylics, 00:02:13.550 --> 00:02:16.069 and exotic woods. Basically, the builder has 00:02:16.069 --> 00:02:19.810 to carve this. shallow trench into the wooden 00:02:19.810 --> 00:02:21.830 surface of the guitar that perfectly matches 00:02:21.830 --> 00:02:23.590 the shape of the material they want to insert. 00:02:23.710 --> 00:02:25.650 Which has to be incredibly precise. Completely. 00:02:25.930 --> 00:02:28.330 If the trench is too shallow, the inlay sticks 00:02:28.330 --> 00:02:30.750 up and it completely ruins the playability. Your 00:02:30.750 --> 00:02:33.789 fingers would catch on it. Ouch. Right. But if 00:02:33.789 --> 00:02:36.689 it's too deep, it sinks. So the piece is glued 00:02:36.689 --> 00:02:39.449 in and then the entire surface is sanded perfectly 00:02:39.449 --> 00:02:41.750 flush so you can't even feel the transition from 00:02:41.750 --> 00:02:44.680 wood to shell. Which just sounds so delicate. 00:02:44.819 --> 00:02:47.319 I mean, shells are brittle. Wood splinters. Yeah, 00:02:47.479 --> 00:02:49.879 it's very unforgiving. So I have to ask the foundational 00:02:49.879 --> 00:02:53.280 question here. Is all of this effort strictly 00:02:53.280 --> 00:02:57.419 to make the guitar look pretty? Or is there a 00:02:57.419 --> 00:03:00.620 functional point to embedding fragile seashells 00:03:00.620 --> 00:03:03.080 into a piece of wood? Well, it's a balancing 00:03:03.080 --> 00:03:06.139 act. The vast majority of inlay work on a guitar 00:03:06.139 --> 00:03:08.560 is pure decoration. I mean, let's just be honest 00:03:08.560 --> 00:03:11.500 about that. However, there are two major exceptions 00:03:11.500 --> 00:03:14.900 where the inlay serves a highly functional, even 00:03:14.900 --> 00:03:18.120 critical purpose. The first is the positional 00:03:18.120 --> 00:03:20.659 markers. The dots on the neck. Exactly. The dots 00:03:20.659 --> 00:03:22.439 are shapes on the fretboard and the side of the 00:03:22.439 --> 00:03:25.620 neck. Those serve as a real -time navigational 00:03:25.620 --> 00:03:27.680 dashboard for the player. Which we'll get to 00:03:27.680 --> 00:03:30.300 because the math behind that is wild. It really 00:03:30.300 --> 00:03:32.340 is. And the second exception is the rosette. 00:03:32.520 --> 00:03:34.639 That's the decorative ring you see circling the 00:03:34.639 --> 00:03:37.659 main sound hole of an acoustic guitar. Oh, right, 00:03:37.680 --> 00:03:39.439 the ring around the hall. I always thought that 00:03:39.439 --> 00:03:41.599 was just a nice flourish. It looks like one. 00:03:42.300 --> 00:03:44.360 But it's actually serving as physical reinforcement 00:03:44.360 --> 00:03:46.800 for the raw edge of the wood around that opening. 00:03:47.520 --> 00:03:50.099 It prevents the top. from splitting under the 00:03:50.099 --> 00:03:52.860 tension of the strings. Wow. OK, so it's structural. 00:03:53.099 --> 00:03:54.960 Highly structural. We are definitely going to 00:03:54.960 --> 00:03:56.919 dig into the secret language of those positional 00:03:56.919 --> 00:03:58.719 markers in a minute, because the layout of that 00:03:58.719 --> 00:04:01.219 map completely blew my mind. But let's look at 00:04:01.219 --> 00:04:04.080 the extreme end of the decorative side first, 00:04:04.639 --> 00:04:06.879 because luthiers don't just stop at a few dots 00:04:06.879 --> 00:04:09.960 in a ring. Not at all. I mean, on very limited 00:04:09.960 --> 00:04:12.979 edition, custom made guitars, the inlay work 00:04:12.979 --> 00:04:15.520 rivals fine renaissance furniture. Seriously? 00:04:15.800 --> 00:04:18.060 We are talking about artistic designs that span 00:04:18.060 --> 00:04:20.560 the entire front or back of the guitar body. 00:04:21.240 --> 00:04:23.319 Builders will use dozens of different materials. 00:04:23.560 --> 00:04:27.139 gold, silver, ivory substitutes, rare woods, 00:04:27.660 --> 00:04:30.319 just to create literal works of art depicting 00:04:30.319 --> 00:04:32.500 complex themes or scenes right across the crane. 00:04:32.720 --> 00:04:34.680 Which usually happens for, what, anniversaries 00:04:34.680 --> 00:04:36.779 and things? Yeah, large guitar manufacturers 00:04:36.779 --> 00:04:39.319 often commission these incredibly elaborate instruments 00:04:39.319 --> 00:04:42.060 to celebrate significant historical milestones. 00:04:42.500 --> 00:04:45.019 But there's a funny paradox here, though. The 00:04:45.019 --> 00:04:47.850 more art you add, the less functional the tool 00:04:47.850 --> 00:04:50.889 becomes. Right. Our source material notes that 00:04:50.889 --> 00:04:53.750 these specific guitars, the ones that represent 00:04:53.750 --> 00:04:56.230 the absolute pinnacle of guitar craftsmanship, 00:04:56.649 --> 00:04:58.930 built from the most exclusive materials on earth, 00:04:59.410 --> 00:05:02.149 they are almost universally considered collector's 00:05:02.149 --> 00:05:05.290 items. They are not intended to be played. Yeah, 00:05:05.290 --> 00:05:07.750 the ultimate expression of the instrument essentially 00:05:07.750 --> 00:05:10.389 wenders it a museum piece. It crosses a line. 00:05:10.709 --> 00:05:13.569 Exactly. You cross a line where the object is 00:05:13.569 --> 00:05:16.779 simply too valuable. to risk scratching with 00:05:16.779 --> 00:05:19.319 a guitar pick or, you know, sweating on during 00:05:19.319 --> 00:05:21.879 a two -hour live performance. It's like, okay, 00:05:21.980 --> 00:05:24.259 it's like forging this beautiful mastercrafted 00:05:24.259 --> 00:05:26.079 sword, putting jewels all over the hilt, but 00:05:26.079 --> 00:05:28.459 then balancing it so poorly with all that heavy 00:05:28.459 --> 00:05:30.560 gold that you could never actually swing it in 00:05:30.560 --> 00:05:33.259 a fight. That's a perfect analogy. Yes, it's 00:05:33.259 --> 00:05:35.579 priceless, but you've completely stripped away 00:05:35.579 --> 00:05:38.300 the original functional soul of the object. Which 00:05:38.300 --> 00:05:41.100 is exactly why the most fascinating inlays aren't 00:05:41.100 --> 00:05:44.019 the million dollar museum pieces at all. The 00:05:44.019 --> 00:05:45.899 really interesting ones are located on the part 00:05:45.899 --> 00:05:49.009 of the guitar the player is actively sweating 00:05:49.009 --> 00:05:52.649 on staring at and bending strings across. Fretboard. 00:05:52.810 --> 00:05:55.110 The fretboard. So let's talk about the fretboard 00:05:55.110 --> 00:05:57.850 because this is where form and function are really 00:05:57.850 --> 00:06:00.569 forced to share the same space and I have to 00:06:00.569 --> 00:06:02.810 imagine that the standard little dots you see 00:06:02.810 --> 00:06:05.829 on most guitars aren't just a humble aesthetic 00:06:05.829 --> 00:06:08.730 choice like if I'm a manufacturer making a thousand 00:06:08.730 --> 00:06:12.250 guitars a day I do not want my workers handsawing 00:06:12.250 --> 00:06:14.810 tiny wooden bird silhouettes. No you definitely 00:06:14.810 --> 00:06:17.060 don't you've hit the nail on the head. The economics 00:06:17.060 --> 00:06:19.560 of manufacturing completely dictate the baseline 00:06:19.560 --> 00:06:21.759 of what we see. Dots have to be the cheapest, 00:06:22.000 --> 00:06:24.319 fastest thing to make. They are incredibly efficient. 00:06:24.519 --> 00:06:26.399 To make a home for a dot, the builder literally 00:06:26.399 --> 00:06:29.560 just plunges a standard circular drill bit into 00:06:29.560 --> 00:06:32.040 the wood. Super easy. Right. And then to create 00:06:32.040 --> 00:06:34.600 the inlay itself, they simply slice circular 00:06:34.600 --> 00:06:37.040 rounds off a pre -made rod of plastic or pearl. 00:06:37.579 --> 00:06:39.920 It requires zero custom tooling and takes seconds. 00:06:40.379 --> 00:06:42.959 And beyond the shape, there's a strict rule about 00:06:42.959 --> 00:06:46.029 color in the source text, right? It's all about 00:06:46.029 --> 00:06:49.269 contrast. Visibility is totally non -negotiable. 00:06:50.269 --> 00:06:52.569 If a luthier is building a guitar with a light 00:06:52.569 --> 00:06:54.949 -colored fretboard -like maple, for example, 00:06:55.230 --> 00:06:57.230 they use black dots. Makes sense. But if they're 00:06:57.230 --> 00:06:59.589 working with a dark wood, like rosewood or ebony, 00:06:59.850 --> 00:07:02.709 they switch to white, silver, or mother of pearl. 00:07:03.290 --> 00:07:06.269 The markers absolutely have to pop visually so 00:07:06.269 --> 00:07:08.930 the player's peripheral vision catches them instantly. 00:07:09.149 --> 00:07:11.470 But you know, the guitar market is fiercely competitive. 00:07:11.689 --> 00:07:14.550 So while dots make perfect economic sense, a 00:07:14.550 --> 00:07:16.889 lot of brands decide to throw that efficiency 00:07:16.889 --> 00:07:19.149 right out the window just to stand out. Oh, for 00:07:19.149 --> 00:07:21.430 sure. The variety of fretboard inlays out there 00:07:21.430 --> 00:07:24.910 is just wild. It really is. The text lists so 00:07:24.910 --> 00:07:28.149 many. You see rhombuses, parallelograms, isosceles 00:07:28.149 --> 00:07:31.569 trapezoids, shark fins, lightning bolts. There 00:07:31.569 --> 00:07:33.730 are intricate vines that run the entire length 00:07:33.730 --> 00:07:35.470 of the neck, something called a morning glory 00:07:35.470 --> 00:07:38.310 flower pot, and even custom silhouettes of women 00:07:38.310 --> 00:07:41.089 in sexually suggestive poses. I mean, it is a 00:07:41.089 --> 00:07:43.910 Wild West out there. And that explosion of shapes 00:07:43.910 --> 00:07:47.550 connects directly to brand identity. In a crowded 00:07:47.550 --> 00:07:50.610 market, manufacturers use distinct inlay shapes 00:07:50.610 --> 00:07:53.110 basically as a trademark. It's a visual signature 00:07:53.110 --> 00:07:55.769 that requires no text. Exactly. It's basically 00:07:55.769 --> 00:07:58.470 the hood ornament of the guitar world. You can 00:07:58.470 --> 00:08:00.670 identify a manufacturer from all the way across 00:08:00.670 --> 00:08:03.350 a crowded bar just by looking at the neck of 00:08:03.350 --> 00:08:05.649 the guitar without ever seeing the logo on the 00:08:05.649 --> 00:08:08.509 headstock. Yeah. Fender is famous for utilizing 00:08:08.509 --> 00:08:11.949 the classic efficient dots. Gibson is globally 00:08:11.949 --> 00:08:16.329 recognized for their blocky isosceles trapezoids. 00:08:16.610 --> 00:08:20.389 And PRS is a big one. PRS Paul Reed Smith famously 00:08:20.389 --> 00:08:23.250 uses simplified silhouettes of various bird species 00:08:23.250 --> 00:08:25.829 in flight. When you see a bird flying up the 00:08:25.829 --> 00:08:28.209 neck, you instantly know you're looking at a 00:08:28.209 --> 00:08:30.329 PRS guitar. But knowing where you are on the 00:08:30.329 --> 00:08:32.529 neck isn't just about the flashy shapes on the 00:08:32.529 --> 00:08:34.200 front of the fretboard. Because if you think 00:08:34.200 --> 00:08:36.059 about the physical mechanics of playing guitar 00:08:36.059 --> 00:08:38.360 standing up, the player can't actually see the 00:08:38.360 --> 00:08:40.340 front of the fretboard very well. No, not at 00:08:40.340 --> 00:08:42.120 all. The front of the fretboard is mostly for 00:08:42.120 --> 00:08:44.139 the audience. Oh, that's interesting. Yeah, for 00:08:44.139 --> 00:08:46.620 the player looking down from above, especially 00:08:46.620 --> 00:08:49.200 on a dark stage where live lighting is constantly 00:08:49.200 --> 00:08:51.559 shifting around those beautiful pearl birds or 00:08:51.559 --> 00:08:54.769 trapezoids. just completely disappear into the 00:08:54.769 --> 00:08:56.990 glare or the shadows. Oh, what do they do? That's 00:08:56.990 --> 00:09:00.129 why luthiers install side dots. These are tiny, 00:09:00.450 --> 00:09:02.889 highly contrasting markers inlaid directly into 00:09:02.889 --> 00:09:04.610 the upper edge of the neck, pointed straight 00:09:04.610 --> 00:09:07.649 at the player's eyes. Oh, OK. And for extreme 00:09:07.649 --> 00:09:10.470 stage conditions, some modern players even employ 00:09:10.470 --> 00:09:13.389 LEDs or optical fibers embedded right into the 00:09:13.389 --> 00:09:15.549 side of the neck to physically illuminate those 00:09:15.549 --> 00:09:17.850 markers. Wait, really? Actual lights? Actual 00:09:17.850 --> 00:09:19.950 lights. They become literal runway lights so 00:09:19.950 --> 00:09:21.850 the player never loses their place in the dark. 00:09:22.370 --> 00:09:24.529 OK, so we know what shapes are on the fretboard, 00:09:24.809 --> 00:09:27.490 and we know how they are made visible. But knowing 00:09:27.490 --> 00:09:30.509 the shapes is only half the puzzle. Right. Because 00:09:30.509 --> 00:09:32.769 the deeper mystery here, the hidden map I mentioned 00:09:32.769 --> 00:09:35.549 at the very beginning of this deep dive, is why 00:09:35.549 --> 00:09:38.629 those specific shapes are placed on those specific 00:09:38.629 --> 00:09:40.730 frets. And this brings us to the fret schemes. 00:09:41.370 --> 00:09:44.090 It is a perfect case study in how human convention 00:09:44.090 --> 00:09:47.149 and visual comfort can completely defy functional 00:09:47.149 --> 00:09:50.779 logic. It is so crazy. Walk us through the standard 00:09:50.779 --> 00:09:53.240 layout. Our research calls the universally accepted 00:09:53.240 --> 00:09:56.840 industry standard Scheme 1. So what does that 00:09:56.840 --> 00:09:59.120 look like? So Scheme 1 is what you will find 00:09:59.120 --> 00:10:02.639 on like 99 % of guitars. It places single inlays 00:10:02.639 --> 00:10:05.200 on the third, fifth, seventh, and ninth frets. 00:10:06.019 --> 00:10:08.320 Then you get a double inlay on the 12th fret 00:10:08.320 --> 00:10:10.519 to mark the octave. OK, and then it repeats. 00:10:10.720 --> 00:10:13.419 Exactly. After the 12th fret, the pattern repeats. 00:10:13.879 --> 00:10:17.299 Single inlays on the 15th, 17th, 19th, and 21st 00:10:17.299 --> 00:10:20.480 frets. And finally, a double inlay on the 24th 00:10:20.480 --> 00:10:22.559 fret, assuming the neck is long enough. There 00:10:22.559 --> 00:10:25.000 are a few quirky exceptions to that though, right? 00:10:25.179 --> 00:10:27.779 A few, yeah. The Gibson Les Paul Custom throws 00:10:27.779 --> 00:10:30.080 an extra single inlay on the very first fret 00:10:30.080 --> 00:10:32.220 before following the rest of the scheme. Right. 00:10:32.460 --> 00:10:34.659 And resonator guitars sometimes use a variation 00:10:34.659 --> 00:10:37.240 with a single inlay on the 12th and double inlays 00:10:37.240 --> 00:10:40.460 on the 15th. But by and large Scheme 1 is the 00:10:40.460 --> 00:10:43.100 undisputed king. It is the map every guitar player 00:10:43.100 --> 00:10:45.019 learns. And when you look at Scheme 1, it has 00:10:45.019 --> 00:10:47.940 a very specific visual rhythm to it. It does. 00:10:48.279 --> 00:10:50.539 The main advantage of Scheme 1 is its geometric 00:10:50.539 --> 00:10:52.700 symmetry. It's perfectly symmetrical around the 00:10:52.700 --> 00:10:54.740 12th fret. Furthermore, if you break the neck 00:10:54.740 --> 00:10:57.580 into halves, so from the nut to the 12th fret, 00:10:57.940 --> 00:11:00.879 and from the 12th to the 24th, each half is perfectly 00:11:00.879 --> 00:11:04.360 symmetrical around the 7th and 19th frets. Visually, 00:11:04.740 --> 00:11:06.960 the spacing just feels incredibly balanced and 00:11:06.960 --> 00:11:09.440 soothing to the human eye. Visually, yes. But 00:11:09.440 --> 00:11:11.740 musically? Musically, it's a disaster. Right. 00:11:11.799 --> 00:11:13.980 If you actually analyze the notes that Scheme 00:11:13.980 --> 00:11:17.039 1 is pointing to, it's a mess. It truly is. There 00:11:17.039 --> 00:11:19.720 is a massive musical flaw in this industry standard 00:11:19.720 --> 00:11:22.870 design. Let's look at the low E string. which 00:11:22.870 --> 00:11:25.049 is the thickest string on the guitar. If you 00:11:25.049 --> 00:11:27.509 play only the frets marked by Scheme 1's dots, 00:11:27.750 --> 00:11:30.690 so that's the 3rd, 5th, 7th, 9th, and 12th frets, 00:11:31.009 --> 00:11:34.710 you get the notes E, G, A, B, and C sharp. Now, 00:11:34.789 --> 00:11:36.649 to anyone who isn't a musician, that might just 00:11:36.649 --> 00:11:39.350 sound like a random list of letters. But musically, 00:11:39.710 --> 00:11:41.970 playing those notes together feels totally unresolved, 00:11:42.070 --> 00:11:44.450 right? Yeah. They don't form a clean, universally 00:11:44.450 --> 00:11:46.370 useful scale. It sounds like stopping a sentence 00:11:46.370 --> 00:11:49.110 halfway through. From a practical playing perspective, 00:11:49.350 --> 00:11:51.070 it's essentially a random collection of notes. 00:11:51.610 --> 00:11:53.490 It doesn't give the player a cohesive musical 00:11:53.490 --> 00:11:56.149 cheat code. It gives you visual symmetry, but 00:11:56.149 --> 00:11:58.649 it completely denies you a functional musical 00:11:58.649 --> 00:12:01.289 map. Which naturally raises the question, is 00:12:01.289 --> 00:12:04.200 there a better way? And the research does introduce 00:12:04.200 --> 00:12:07.039 an alternative layout called Scheme 2, which 00:12:07.039 --> 00:12:10.360 is far less popular, but mechanically brilliant. 00:12:10.799 --> 00:12:13.019 It really is. Tell us about the Scheme 2 map. 00:12:13.320 --> 00:12:16.580 So Scheme 2 shifts the dots. It places inlays 00:12:16.580 --> 00:12:19.980 on the 3rd, 5th, 7th, 10th, and 12th frets. So 00:12:19.980 --> 00:12:23.139 the 9th fret dot moved to the 10th fret. Precisely. 00:12:23.559 --> 00:12:25.659 And now if you play those marked frets on the 00:12:25.659 --> 00:12:28.559 E string, you get a new sequence of notes, e 00:12:28.559 --> 00:12:31.659 .g. a... B and D. Which completely changes the 00:12:31.659 --> 00:12:34.500 game. Completely. Because those five notes, E, 00:12:34.820 --> 00:12:38.299 G, A, B, and D, form the E minor pentatonic scale. 00:12:38.539 --> 00:12:41.019 And the pentatonic scale is basically the foundational 00:12:41.019 --> 00:12:43.820 backbone of almost every rock, blues, and pop 00:12:43.820 --> 00:12:46.659 solo ever played. Oh, absolutely. It is the single 00:12:46.659 --> 00:12:49.320 most useful scale a guitarist can know. So scheme 00:12:49.320 --> 00:12:52.139 two. physically highlights the exact notes you 00:12:52.139 --> 00:12:55.259 need to play a Blazing Blues solo. Yes. Not only 00:12:55.259 --> 00:12:57.799 that, but Scheme 2 maps very closely to the coloring 00:12:57.799 --> 00:13:00.700 of a piano's keys, so it provides a logical cross 00:13:00.700 --> 00:13:02.519 -instrument musical shorthand. That's amazing. 00:13:02.639 --> 00:13:05.019 Yeah. You occasionally see this functional Scheme 00:13:05.019 --> 00:13:07.779 used on classical mutars, assuming they have 00:13:07.779 --> 00:13:10.220 position markers at all, since a lot of classical 00:13:10.220 --> 00:13:13.399 purists prefer completely blank fretboards. Okay, 00:13:13.399 --> 00:13:16.019 I have to pause here because this is so incredibly 00:13:16.019 --> 00:13:17.740 frustrating to me. I know where you're going 00:13:17.740 --> 00:13:19.980 with this. If Scheme 2 makes perfect musical 00:13:19.980 --> 00:13:22.299 sense, right? If it gives the player a built 00:13:22.299 --> 00:13:24.299 -in sheet code for the most important scale in 00:13:24.299 --> 00:13:26.659 modern music, and if it mirrors the centuries 00:13:26.659 --> 00:13:30.600 -old logic of a piano keyboard, why in the world 00:13:30.600 --> 00:13:34.019 did Scheme 1 win out? That's a great question. 00:13:34.139 --> 00:13:38.059 I mean, why is the musically random map the universal 00:13:38.059 --> 00:13:40.720 standard? It basically comes down to human psychology. 00:13:41.039 --> 00:13:43.539 early builders and players gravitated toward 00:13:43.539 --> 00:13:45.639 the geometric balance of Scheme 1. Just because 00:13:45.639 --> 00:13:48.559 it looked nice. Basically, yeah. The visual comfort 00:13:48.559 --> 00:13:51.759 of that symmetry simply overrode the desire for 00:13:51.759 --> 00:13:54.860 a logical musical map. We liked how the math 00:13:54.860 --> 00:13:57.139 looked, even if we hated how the math sounded. 00:13:57.559 --> 00:14:00.460 And over time, that visual pattern became the 00:14:00.460 --> 00:14:03.480 expected, deeply ingrained language of the instrument. 00:14:04.059 --> 00:14:07.200 At this point, a guitarist's eyes are so heavily 00:14:07.200 --> 00:14:09.360 trained to navigate by the symmetry of Scheme 00:14:09.360 --> 00:14:12.200 1 that changing it to the musically superior 00:14:12.200 --> 00:14:15.779 Scheme 2 would actually confuse them. So we chose 00:14:15.779 --> 00:14:18.840 a pretty pattern over a functional map, and now 00:14:18.840 --> 00:14:21.440 we are locked into it for eternity. Pretty much. 00:14:21.639 --> 00:14:24.379 That realization that visual aesthetics often 00:14:24.379 --> 00:14:27.460 disguise or completely override functional reality, 00:14:27.840 --> 00:14:29.860 that brings us to the rest of the guitar's body. 00:14:29.980 --> 00:14:31.820 Right, moving off the neck. Because as we move 00:14:31.820 --> 00:14:34.220 off the fretboard, we find that the most beautiful, 00:14:34.320 --> 00:14:37.480 delicate inlays are actually acting as hidden 00:14:37.480 --> 00:14:39.759 armor. Yeah, let's look at the edges of the main 00:14:39.759 --> 00:14:42.340 body. We briefly mentioned the rosette inlay 00:14:42.340 --> 00:14:45.440 reinforcing the acoustic sound hole, but the 00:14:45.440 --> 00:14:48.200 really brilliant structural disguise is an inlay 00:14:48.200 --> 00:14:50.610 technique called binding. Right. So if you look 00:14:50.610 --> 00:14:53.090 at an acoustic guitar, you usually see this delicate, 00:14:53.409 --> 00:14:55.190 intricate little pinstripe running around the 00:14:55.190 --> 00:14:57.549 entire outer edge of the body where the top meets 00:14:57.549 --> 00:15:00.110 the sides. Often multi -layered, yeah. Yeah. 00:15:00.490 --> 00:15:03.210 Sometimes it's white and black plastic or wood. 00:15:03.590 --> 00:15:05.750 It looks like a pure tuxedo detail, like just 00:15:05.750 --> 00:15:07.929 a cosmetic outline. But on an acoustic guitar, 00:15:08.350 --> 00:15:11.169 that delicate outline is absolutely vital for 00:15:11.169 --> 00:15:14.690 survival. Binding serves to protect the fragile 00:15:14.690 --> 00:15:17.460 edges of the wood from physical impact. OK. And 00:15:17.460 --> 00:15:19.799 even more importantly, it protects against moisture 00:15:19.799 --> 00:15:22.679 damage, specifically where the end grain of the 00:15:22.679 --> 00:15:25.500 wood is exposed. So explain the physics of that 00:15:25.500 --> 00:15:27.860 end grain vulnerability. Like, why is the edge 00:15:27.860 --> 00:15:30.700 so fragile in the first place? OK, so think of 00:15:30.700 --> 00:15:33.899 a piece of wood not as a solid block, but like 00:15:33.899 --> 00:15:37.460 a tightly packed bundle of microscopic drinking 00:15:37.460 --> 00:15:39.919 straws. Drinking straws. OK, I can picture that. 00:15:40.059 --> 00:15:42.360 Right. And those straws carry water up and down 00:15:42.360 --> 00:15:44.919 the tree when it's alive. So when you cut the 00:15:44.919 --> 00:15:47.490 wood to make a guitar top, The edges of the guitar 00:15:47.490 --> 00:15:50.210 expose the open ends of all those tiny straws. 00:15:50.210 --> 00:15:52.149 Oh, I see. If you hit the edge of the guitar 00:15:52.149 --> 00:15:54.610 against a table, those open straw ends crush 00:15:54.610 --> 00:15:57.850 easily. Furthermore, if the air is humid, those 00:15:57.850 --> 00:16:00.830 open ends suck moisture deep into the wood, causing 00:16:00.830 --> 00:16:03.370 it to swell and warp. So the binding basically 00:16:03.370 --> 00:16:07.259 caps the straws. Exactly. After the back, front, 00:16:07.360 --> 00:16:09.899 and sides of the acoustic guitar are joined together, 00:16:10.240 --> 00:16:13.240 the luthier rates a small ledge right into that 00:16:13.240 --> 00:16:15.960 outer edge, basically cutting away the exposed 00:16:15.960 --> 00:16:18.899 straw ends. Gotcha. The binding material, which 00:16:18.899 --> 00:16:21.559 is usually a much denser plastic or hardwood, 00:16:22.100 --> 00:16:24.960 is then inlaid into that ledge before the guitar 00:16:24.960 --> 00:16:27.909 is finished and sealed. It physically caps the 00:16:27.909 --> 00:16:30.830 grain, sealing out water, and providing a hard 00:16:30.830 --> 00:16:33.610 bumper against impacts. It is literally edge 00:16:33.610 --> 00:16:36.149 armor disguised as high -end aesthetic trim. 00:16:36.549 --> 00:16:38.909 It really is. Though it's worth noting the rules 00:16:38.909 --> 00:16:40.750 change entirely when you switch from acoustic 00:16:40.750 --> 00:16:43.850 to electric guitars. Oh, they do. Yeah. On solid 00:16:43.850 --> 00:16:46.830 -body electric guitars, binding reverts to serving 00:16:46.830 --> 00:16:49.429 only a cosmetic purpose. Because it's solid wood. 00:16:49.610 --> 00:16:52.490 Exactly. A solid block of ash or mahogany doesn't 00:16:52.490 --> 00:16:55.210 have a fragile, thin, hollow acoustic top to 00:16:55.210 --> 00:16:57.490 protect. So the binding is just there for the 00:16:57.490 --> 00:17:00.129 visual outline. You'll also sometimes see the 00:17:00.129 --> 00:17:03.070 edges of fretboards bound in a similar way, mostly 00:17:03.070 --> 00:17:05.289 to hide the rough metal ends of the frets. Okay, 00:17:05.430 --> 00:17:07.670 that makes sense. Alongside binding, our research 00:17:07.670 --> 00:17:10.089 introduces another inlay technique with an amazing 00:17:10.089 --> 00:17:13.130 name, purfling. Such a great word. Which sounds 00:17:13.130 --> 00:17:15.329 like a noise a cartoon character makes, but it's 00:17:15.329 --> 00:17:18.049 actually an ingenious engineering trick. It is. 00:17:18.309 --> 00:17:20.869 Perfling is very similar to binding, but there 00:17:20.869 --> 00:17:23.210 is a key mechanical difference in where it's 00:17:23.210 --> 00:17:26.690 placed. OK, how so? Well, while binding wraps 00:17:26.690 --> 00:17:29.109 around the absolute outer edge of the instrument, 00:17:29.609 --> 00:17:33.369 perfling is offset. It sits slightly inward on 00:17:33.369 --> 00:17:35.950 the flat surface of the top or back. So it's 00:17:35.950 --> 00:17:38.809 not a bumper. No. You typically find it running 00:17:38.809 --> 00:17:40.750 parallel to the edge on acoustic instruments, 00:17:41.109 --> 00:17:43.210 and it is universally common around the edges 00:17:43.210 --> 00:17:45.230 of violins. And it has a completely different 00:17:45.230 --> 00:17:47.910 job. Completely different. Pofling is essentially 00:17:47.910 --> 00:17:50.450 a structural fire break. A fire break. Yeah. 00:17:50.750 --> 00:17:53.589 To install it, the luthier cuts a tiny shallow 00:17:53.589 --> 00:17:56.539 trench just inside the edge of the wood. Going 00:17:56.539 --> 00:17:59.099 back to our straw analogy, if the outer edge 00:17:59.099 --> 00:18:01.259 of the guitar takes a massive hit and a crack 00:18:01.259 --> 00:18:04.099 starts to form, that crack naturally wants to 00:18:04.099 --> 00:18:05.819 travel straight down the length of the straws. 00:18:05.819 --> 00:18:07.940 Oh, right through the center of the guitar body. 00:18:08.220 --> 00:18:10.299 Exactly. But when the crack hits the purfling 00:18:10.299 --> 00:18:12.839 trench, it encounters a physical gap where the 00:18:12.839 --> 00:18:15.180 grain has been severed. The crack has nowhere 00:18:15.180 --> 00:18:18.910 to go, so it stops. That is genius. Isn't it? 00:18:19.150 --> 00:18:21.710 It's a built -in fault line designed to sacrifice 00:18:21.710 --> 00:18:24.029 the outer quarter inch of the wood just to save 00:18:24.029 --> 00:18:26.930 the entire acoustic chamber. High -level engineering 00:18:26.930 --> 00:18:30.269 masquerading as art. Which brings us to my absolute 00:18:30.269 --> 00:18:33.309 favorite detail from this entire deep dive, the 00:18:33.309 --> 00:18:36.690 ultimate irony of guitar inlays. Let's talk about 00:18:36.690 --> 00:18:40.019 the skunk stripe. Ah, yes. The Skunk Strike. 00:18:40.019 --> 00:18:42.680 I love this story. It's a brilliant manufacturing 00:18:42.680 --> 00:18:45.980 quirk from the 1950s that eventually evolved 00:18:45.980 --> 00:18:48.799 into a luxury status symbol. So how did it start? 00:18:49.660 --> 00:18:53.180 Well, some iconic electric guitars, specifically 00:18:53.180 --> 00:18:55.440 early models of the Fender Telecaster and the 00:18:55.440 --> 00:18:57.940 Stratocaster, were designed to be mass produced 00:18:57.940 --> 00:19:00.039 as cheaply and efficiently as possible. Right. 00:19:00.160 --> 00:19:04.299 Post -war boom. Exactly. To save time, Fender 00:19:04.299 --> 00:19:06.920 built the entire neck from a single solid piece 00:19:06.920 --> 00:19:09.109 of maple. They didn't bother gluing a separate 00:19:09.109 --> 00:19:10.869 piece of wood on top of the fretboard. Which 00:19:10.869 --> 00:19:13.329 creates a massive engineering problem. A huge 00:19:13.329 --> 00:19:15.329 problem. Yeah. Because the guitar neck requires 00:19:15.329 --> 00:19:18.309 a truss rod. For the tension. Right. It's a heavy 00:19:18.309 --> 00:19:21.509 metal bar running inside the neck to counteract 00:19:21.509 --> 00:19:23.569 the hundreds of pounds of tension from the steel 00:19:23.569 --> 00:19:27.250 strings. Usually you lay the truss rod into a 00:19:27.250 --> 00:19:29.190 trench on the top of the neck, and then you just 00:19:29.190 --> 00:19:31.230 glue the separate fretboard over it to hide it. 00:19:31.369 --> 00:19:33.430 But Fender didn't have a separate fretboard. 00:19:33.630 --> 00:19:36.369 Right. Since Fender was using one solid piece 00:19:36.369 --> 00:19:38.950 of wood, they couldn't hide it on top. They had 00:19:38.950 --> 00:19:41.190 to route a deep trench into the back of the neck 00:19:41.190 --> 00:19:44.700 to drop the metal rod in. And obviously you can't 00:19:44.700 --> 00:19:47.279 just leave a raw metal rod exposed on the back 00:19:47.279 --> 00:19:49.180 of the neck where the player's hand is constantly 00:19:49.180 --> 00:19:51.980 sliding around. You definitely can't. Yeah. So 00:19:51.980 --> 00:19:54.680 to plug the hole, Fender jammed a strip of dark 00:19:54.680 --> 00:19:57.519 walnut wood into the trench right over the rod, 00:19:58.140 --> 00:20:00.039 contrasting sharply against the lighter maple 00:20:00.039 --> 00:20:02.839 neck. And this dark line running down the back 00:20:02.839 --> 00:20:06.240 became popularly known as a skunk stripe. Yes, 00:20:06.240 --> 00:20:08.960 it did. And here is the incredible punchline 00:20:08.960 --> 00:20:12.299 to all of this. A skunk stripe is not technically 00:20:12.299 --> 00:20:15.849 an inlay. No, it isn't. It is a cheap functional 00:20:15.849 --> 00:20:19.190 patch job for a structural trench. But that patch 00:20:19.190 --> 00:20:22.549 job became so visually iconic, so deeply associated 00:20:22.549 --> 00:20:25.529 with the classic vintage Fender look that modern 00:20:25.529 --> 00:20:28.289 guitar players actively demand it. So funny. 00:20:28.569 --> 00:20:31.630 Today, luxury guitar makers who use modern construction 00:20:31.630 --> 00:20:33.789 methods with separate fretboards, meaning they 00:20:33.789 --> 00:20:35.269 don't even need a hole in the back of the neck 00:20:35.269 --> 00:20:37.910 at all, will actually route a shallow trench 00:20:37.910 --> 00:20:41.410 and inlay a piece of dark wood just to simulate 00:20:41.410 --> 00:20:44.210 a completely fake skunk stripe. It's the ultimate 00:20:44.210 --> 00:20:46.910 example of a functional manufacturing workaround 00:20:46.910 --> 00:20:50.069 evolving into a pure aesthetic requirement. The 00:20:50.069 --> 00:20:52.329 design loop is totally closed. It really has. 00:20:52.690 --> 00:20:55.849 People are literally paying a premium for builders 00:20:55.849 --> 00:20:59.059 to inlay a fake patch job into a perfectly good 00:20:59.059 --> 00:21:02.019 piece of wood. It perfectly highlights this intense, 00:21:02.200 --> 00:21:04.980 almost irrational desire for visual personalization 00:21:04.980 --> 00:21:07.039 in guitar culture. I mean, the research even 00:21:07.039 --> 00:21:09.579 points to Jerry Garcia's famous guitar, Rosebud. 00:21:09.720 --> 00:21:11.859 Oh yeah, that's a great example. It features 00:21:11.859 --> 00:21:15.759 this massive, wildly intricate dancing skeleton 00:21:15.759 --> 00:21:18.859 inlay right in the middle of the main body. It 00:21:18.859 --> 00:21:21.259 just proves that players want their instruments 00:21:21.259 --> 00:21:25.359 to be completely unmistakably theirs. Functional 00:21:25.359 --> 00:21:28.960 logic be damned. Absolutely. Players form a deeply 00:21:28.960 --> 00:21:31.579 emotional bond with their instruments. They use 00:21:31.579 --> 00:21:33.900 these techniques, whether it's an elaborate dancing 00:21:33.900 --> 00:21:36.779 skeleton, a fake skunk stripe, or a flying bird 00:21:36.779 --> 00:21:39.720 marking the twelfth fret. to physically embed 00:21:39.720 --> 00:21:41.920 their identity into the wood. So let's pull all 00:21:41.920 --> 00:21:43.819 of this together. The next time you hold a guitar 00:21:43.819 --> 00:21:46.220 or even just watch a band play on stage, look 00:21:46.220 --> 00:21:48.000 closely at the wood. You aren't just looking 00:21:48.000 --> 00:21:50.099 at shiny, expensive decorations. Got it all. 00:21:50.400 --> 00:21:52.599 You are looking at a highly functional interface 00:21:52.599 --> 00:21:54.400 map designed to guide the player through the 00:21:54.400 --> 00:21:57.220 dark. You are looking at a trademark brand identity 00:21:57.220 --> 00:21:59.480 cut from Mother of Pearl. You're looking at a 00:21:59.480 --> 00:22:02.779 hidden moisture barrier capping microscopic straws 00:22:02.779 --> 00:22:04.920 and a structural fire break protecting the body. 00:22:05.180 --> 00:22:07.839 And beautifully, you are looking at a century 00:22:07.759 --> 00:22:11.220 old compromise between perfectly logical musical 00:22:11.220 --> 00:22:14.299 mapping and our deeply human need for visual 00:22:14.299 --> 00:22:16.700 symmetry. It's a layered history written in wood, 00:22:17.019 --> 00:22:20.849 shell and plastic. It really is. You know, stepping 00:22:20.849 --> 00:22:23.509 back from the guitar itself, this whole conversation 00:22:23.509 --> 00:22:25.349 leaves us with a really interesting thought to 00:22:25.349 --> 00:22:28.789 mull over. Oh, what's that? Well, as modern technology 00:22:28.789 --> 00:22:32.009 advances, we are rapidly replacing physical tactile 00:22:32.009 --> 00:22:35.309 interfaces with smooth blank glass touch screens. 00:22:35.490 --> 00:22:38.549 That's very true. We are slowly losing this ancient 00:22:38.549 --> 00:22:42.089 human tradition of embedding permanent, beautiful 00:22:42.089 --> 00:22:44.890 tactile markers inlays into our daily tools. 00:22:44.910 --> 00:22:48.779 Wow. Makes you wonder. What happens to our relationship 00:22:48.779 --> 00:22:51.140 with the objects we use every day when they are 00:22:51.140 --> 00:22:53.299 no longer physically mapped and permanently decorated 00:22:53.299 --> 00:22:56.160 by their makers? When they are instead just blank 00:22:56.160 --> 00:22:58.920 glass slates waiting to be lit up? That is a 00:22:58.920 --> 00:23:01.559 fascinating point. From the dashboard of a car 00:23:01.559 --> 00:23:04.279 to a piece of pearl crushed into rosewood to 00:23:04.279 --> 00:23:07.140 the featureless glass in our pockets, we crave 00:23:07.140 --> 00:23:10.480 the design, but we rely on the map. This has 00:23:10.480 --> 00:23:12.200 been the Deep Dive. See you next time.