Intervals: guitar's secret decoder ring

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Published 2023-07-16
Intervals are the building blocks of music, and the guitar fretboard makes them easier to identify and visualize than any other instrument. Learn a simple counting trick that will enable you to identify any interval on the fretboard and then use it to demystify any chord voicing.

► Keywords: guitar lesson, music theory, intervals, major scale, interval complements

► To see how this video fits into the big picture of fretboard understanding, check out this overview video:    • A new and faster way to unlock the fr...  
or download a FREE 12-page overview e-book: fretscience.myshopify.com/pro...

► For downloadable/printable "cheat sheets" for this video and others, visit: fretscience.myshopify.com/

► You can learn more, sign up for my email newsletter, or contact me at: fretscience.com/

► Gear I use and recommend (affiliate links):
TC Electronic Infinite Sustainer Pedal - imp.i114863.net/doNAyq
TC Electronic PolyTune 3 Mini Tuner - imp.i114863.net/ZdnDVQ
TC Electronic Ditto Looper - imp.i114863.net/b34ekP
Digitech Trio+ Pedal - imp.i114863.net/5b2Xn3
Boss RC-500 Loop Station - imp.i114863.net/MXG1K3
D'Addario NYXL strings - imp.i114863.net/QOZRbx
MXR Six Band EQ Pedal - imp.i114863.net/QOZgYM
Focusrite Scarlett 2i2 interface : imp.i114863.net/jWxgev
PRS Guitars - imp.i114863.net/LPAG0L
Bose S1 Pro PA - imp.i114863.net/GjP5Kr
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World's Best Cables 10' (Mogami/Neutrik) - amzn.to/3lq4OlD
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► Recommended video viewing order:
Full playlist:    • Guitar scales made easy (Recommended ...  

Individual videos:
1. Use "the warp" to reduce memorization:    • HOW TO VISUALIZE CHORDS & SCALES: A s...  
2. Master the pentatonic scale with the rectangle and stack:    • Two Simple Shapes UNLOCK the Pentaton...  
3. Learn the notes!:    • Memorize the fretboard: 3 reasons why...  
4. Intervals: Guitar's secret decoder ring:    • Intervals: guitar's secret decoder ring  
5. Understand the modes:    • Demystifying the modes on guitar: it ...  
6. The best way to learn/play the modes:    • This hack makes learning the modes on...  
7. Another easy way to play the modes:    • Learn ALL the Modes on Guitar in Just...  
8. The CAGED system and triads:    • Demystifying Triads and CAGED: Unlock...  
9. The 3nps system:    • Unlock the fretboard with three notes...  
10. Instant harmony:    • Easy Double-Stop Harmonies: From The ...  

► Chapters:
00:00 - Introduction and interval basics
04:55 - The chromatic circle and interval complements
06:42 - Calculating intervals
08:08 - Identifying intervals the easy way
09:55 - Dealing with “the warp” in standard tuning
10:57 - Decoding and modifying chord voicings
13:15 - Visualizing nearby intervals

► Thank you to Dave DiCenso (drums), Jeff Gilman (bass), and Jake Shapiro (guitar, cello) for providing the theme music "Sea Horses".

All Comments (21)
  • @gomzomz
    Babe wake up new Fret Science video dropped
  • @_arman_
    For viewers: I want to offer a counter to the 'this is too complicated' -- for those who are 'ready' for this video. I can totally understand why some may be confused, but personally I spent about 10 minutes memorising the list of semitone intervals (Ie, 7 = perfect 5th) and then after watching the video a few times, I can now identify any interval on the guitar in under about 1-2 seconds. And that's still while consciously running through the numbers, so I anticipate it will become essentially instant soon enough - which is the real goal. Previously I'd count out frets and frequently get lost of confused - it would take me forever. I'm not a special case, that's how it's supposed to work. Don't feel disheartened if you don't get the same results immediately - but you should know without a doubt that the ability is definitely quickly attainable once you're ready for it. If you're feeling frustrated or confused, watch some other Fret Science videos and maybe some youtube videos on intervals from other teachers so you can get a more comfortable holistic grasp of it. Then when you're feeling relaxed and open, come back to this video. If you know your 5x multiplication table and you're ok with very basic arithmetic, you're going to have this in your pocket. If not today, then very soon.
  • @craigdros5427
    Incredible. I feel like a fog has been lifted off my guitar brain. So much more convenient to be able to play and think about what you're doing than having to remember what you've learned. What an awesome video! Thank you Fret Science!
  • @GinoYambao
    This is basically THE answer im looking for when the circle of fifths is explained! Thank you so much for answering years of inquiry!
  • @garethjordaan5675
    These Fret Science videos are pure gold! Far and away the most valuable content I have ever come across. Well done and thank you so much for your effort.
  • @Linxthisisaurl1
    These videos are incredible and routinly give me huge revelations about playing guitar. This is a service man, thank you.
  • @KrishnaVinod
    The best instruction on intervals for guitar I've ever seen. Love your entire series of videos. Thank you!
  • @FrancisGrant1
    I've been playing the guitar for over two decades.... my YouTube channel is dedicated to it... and I have never come across this before!! This is genius!! Thank you
  • Your algebraic expression is the perfect way to count semitones. From there it's easy to convert them to intervals in your head. Thank you soooooo much for your painstaking effort to produce such an outstanding video!
  • @geeman7415
    Massive information and brain reconfiguring content towards complete understanding. Totally brilliant, deep dive, that will be the go to source for generations to come. Thank you.
  • @shalomshalom735
    What a great video !!! Great channel. Looking forward to your next video that you had mentioned about harmonizing.
  • @micr0ps2
    This visualization and the way you teach really clicks for me and I feel enlightened by your videos.
  • @iamhapidays8766
    As always, FS methodology of incorporating both visual animation and verbal explanation despite some complexity, makes understanding conducive and engaging! This is truly a GEM. This viewer is so appreciative of your effort and dedication making guitar learning much more fun and meaningful.
  • @paulmuller3203
    Amazing detail, content, and clarity all in a nice tight bundle of information. Great job!!!
  • I see some people criticizing the video for the complexity but its seriously very resourseful. just remember that this is not a topic that can be picked up from one video alone. you would be very naive to expect to learn and master stuff like this in less than a month. I advise you to take notes from this video and use it as ground work or to build upon the knowledge you already have.
  • @PerryShops
    Hands down - these are some of the best "music theory for guitarists" videos on The Tubes. Cheers man - thank you so much for making them!
  • @aboomer420
    Learning all the music theory i scoffed at when starting my guitar journey 15 years ago has been tough, but i feel blessed to have such good content to help me catch up. Thank you for explaining the music jargon instead of just using it!
  • @georgemorgan4233
    Great presentation! No time wasted. Knowledge conveyed. Jon Finn would approve of your use of the warp. Brilliant!
  • @thadstuart8544
    I really like all the lessons youve put together. As a thank you, i just ordered the PDF bundle from you. Thanks again for all you do