Minor Seventh Chord Substitution
Some jazz tricks to obtain new chord voicings or using better those we already know... 😉😉😎
youtu.be/3fC1RsKa_iY
Major Triad and Inversions on Two Strings
Although it is not so common to learn arpeggios of triads on two strings, by combining these building blocks we can obtain almost any more complex shape.
Here we have arpeggios with 1-2 Notes-Per-Strings (Red) and 2-1 NPS (Blue) on five string sets.
All Arpeggios and Inversions on String Sets, Notes-per-string distribution, Intervals map, automatically obtained with GuitarLayers guitarlayers.com
We know just one way to create and exploring new things on the guitar better than this one... and it is searching and playing them directly on the instrument. 😎
youtu.be/K8c-wVKZMxY
This video shows how to harmonize automatically a given scale, with 7th chords and inversions, with a few clicks.
See more videos on our website guitarlayers.com
How to obtain Vertical Shapes for scales and arpeggios with guitarLayers 👇👇👇
Hi, how are you? Any predictions for Guitar Layers being released for iOS? Thank you.
This 1-minute video shows how to manage multiple fretboards projects with Guitarlayers. 👇👇👇
Seven shapes, 3 Notes-Per-String. Each Shape... all 7 Modes! 😉
Each shape, works for all seven modes. Every mode has its own degrees map.
You can hear the right sound of each mode by playing these shapes over a bass pedal with the same root of the mode’s root. Different shapes will sound identical as they contain the same notes.
In addition you can ear the characteristic sound of each mode by placing its tensions on the strong beats of the measure so they are not perceived as passing tones and loose their harmonic value.
3NPS shapes, Modes and intervals map, automatically obtained with guitarLayers. guitarlayers.com.
Make one with the arpegios, target notes as well and its gonna be perfect 🧛♂️
This shape is one distributed like a bullets in a revolver with infinite chambers and rounds... It is the same... You just shoot and empty chamber by chamber...
Very useful. Thank you.
MODES ARE NOT SHAPES
This video shows how to obtain modes of a given scale with GuitarLayers 👇👇👇
“I like to watch the news, because I don't like people very much and when you watch the news ... if you ever had an idea that people were really terrible, you could watch the news and know that you're right.” - Frank Zappa
Mit dem zweiten sieht man besser 😊
Peer Neeleman
Five Shapes. Each Shape... 7 Modes!
A very useful map about Major Scale's Modes. Five basic shapes showing scale's degrees.
Stay tuned for the seven 3 Notes-per-string map, same concept 😉
All Shapes, modes, degrees map, automatically obtained with GuitarLayers guitarlayers.com
I have the software..how do I manage these views ?
Please you have map scale
This is so helpful😊😊😊
What is a degree
Mixolydian Pentatonic Scale
The Mixolydian Pentatonic Scale is a less known scale but widely used by guitarists like Eric Johnson, Robben Ford, Joe Bonamassa and Eric Gales just to mention a few. It works very well when used over Dom7 chords.
Here some useful Vertical Shapes and 2-3 Notes-Per-String Shapes.
This scale has been automatically shaped with the GuitarLayers Vertical Shapes and Notes-Per-Strings functions. guitarlayers.com
The Barry Harris' Minor 6th Dininished scale
Another scale to harmonize that Barry Harris says everybody must know! Enjoy...
GuitarLayers lets you to harmonize a given scale in 4 steps:
1. Select Harmonization and choose a scale
2. Create a chord or arpeggio on the first scale degree
3. Select a String Set
4. Browse all the chords built on the next scale degrees
5. Repeat step 4 by selecting another string set, drop voicing or inversion
Find more on guitarlayers.com
Dear friends,
update 2.5.0 is now available on the Apple Store!
Read the release notes to see what's new with this GL version.
👇👇👇
www.guitarlayers.com/guitarlayers_en_releasenotes_rel_2-5-0-pdf/
C Augmented (3 tonic scale) Harmonized
Finding 3 notes-chords movement by harmonizing automatically the C Augmented scale on string sets. 😎
Any expect. for Android ?
Automatic Harmonizations
GuitarLayers allows users to harmonize automatically the Barry Harris' Scale (and many others) on all String Sets, with all chord Inversions and Drop voicings (24 possible voicings for each 7th chord!) with just a few clicks.👇👇👇
The Barry Harris' 6th Diminished Scale
The Barry Harris harmony approach is a way of thinking about jazz chords and melodies based on specific 8-note scales.
Instead of using the usual 7-note scales, 8-note scales provide a way for you to discover new and exciting chord voicings. You can use these to unlock cool scale secrets that you can use to build any chord in any key.
Try to harmonize that magical scale that Barry Harris says everybody must know!
GuitarLayers allows users to harmonize automatically the Barry Harris' Scale (and many others) on all String Sets, with all chord Inversions and Drop voicings (24 possible voicings for each 7th chord!) with just a few clicks.
Find more on guitarlayers.com
GuitarLayers 2.4.0 update is now available on the App Store!
New Scales added: available as presets and for automatic harmonization with chords or arpeggios:
Barry Harris Sixth Diminished Major; Barry Harris Sixth Diminished Melodic Minor; Messiaen 2nd Mode Truncated; Messiaen 3rd Mode; Messiaen 4th Mode Inverse; Messiaen 5th Mode; Messiaen 5th Mode Inverse; Messiaen 6th Mode; Messiaen 6th Mode Inverse; Messiaen 7th Mode; Messiaen 7th Mode Inverse; Major Hexatonic; Minor Hexatonic; Tritone;
New Instruments added:
Guitar 6 Strings D G C F Bb Eb (All Fourths); Guitar 6 Strings DGCFAD (OneToneDown) Guitar 7 Strings ADGCFAD; Mandolin 4 Strings G D A E; Mandolin 4 Strings G D G D; Mandolin 4 Strings G D G B; Mandolin 4 Strings G D A E;
Hope to see some day your app available on win/Android ! It's look very easy to use and perfect for educational stuff
Altered scale and II V I progression
Here are shown a D Dorian scale over a Dm7, a G Superlocrian scale over a G7 and a C Ionian scale over a Cmaj7.
Try to practice them by improvising over a C II V I backing track and then try to figure out the remaining scale shapes along the fretboard. 😉
All shapes, modes, layering, automatically obtained with GuitarLayers guitarlayers.com
Big fan off ur thnx
Alted(com.dim/holton/ridan7/alt dorian)
For those who missed it...
see the video and learn how the amazing young guitarist Matteo Mancuso uses this scale to perform some of his killer guitar licks!
👇👇
Matteo Mancuso Diminished Scale Lick | guitarlayers
www.guitarlayers.com
Matteo Mancuso favorite Diminished Scale shape, with arpeggios inside it, analyzed and mapped on the freyboard with guitarLayers.
GuitarLayers on classical guitar!
Photo from Italian classical guitarist and teacher Flavio 👍👍👍
This content isn't available right now
When this happens, it's usually because the owner only shared it with a small group of people, changed who can see it or it's been deleted.
Holiday Gift Guide 2020
Dear friends, we are happy to announce that Premier Guitar's "Holiday Gift Guide 2020" is out now and GuitarLayers is among the products in the catalog with a special 20% discount, starting today until January 7th, 2021.
Check it now! 😉
Thanks for all Eddie...
Eddie Van Halen dies aged 65 following cancer battle
www.guitarworld.com
BREAKING: Wolfgang Van Halen confirmed the newsI want it ... There's any android app for it ?
❤❤❤
so sad my condolences to eddies son wolfgang
Eric Gales Phrygian Dominant Sound
In a epic guitar duel with Joe Bonamassa, guitarist Eric Gales, over an E pedal, plays an E minor pentatonic mixed with a scale derived from the A Harmonic minor scale.
Here are the scale's notes on the fretboard with some interesting easy to play 3 notes-per-string patterns.
Check out the video and find your way to play these shapes! 😉
All shapes, NPS patterns and degrees generated automatically with guitarLayers guitarlayers.com
E7(9- 11 13-) it's five in A min Harm
Does this translate to what he's doing in standard tuning? His lowest ring is on the bottom 🤔
"I don’t see how it’s possible to have too much technique or knowledge.
I’m a big believer in knowing why you want to learn something, and I suspect that allotting practice time on that basis can help to solve many players’ blind alley problems." - Guthrie Govan
That Charvel neck!!
Major & Minor Pentatonic Overlapped
Here major and minor pentatonic scales overlapped in the same fretboard portion in order to visualize, compare and play them switching easily from major and minor or blending them as it usually happens in the blues.
All shapes and layering automatically obtained with guitarLayers guitarlayers.com
Still no android version 🤔
"Playing scales is like a boxer skipping rope or punching a bag. It's not the thing in itself; it's preparatory to the activity." - Barney Kessel
Always liked Barney, quite a comedian as well !
Anas he looks like you brother 🙂
G Major Blues Scale
Despite its minor counterpart the Major Blues Scale is probably a bit less used. When mastered it produces a very bluesy elegant sound perfect for many major harmonic progressions, especially when it is tastefully combined with the Minor Blues Scale.
All shapes automatically obtained with guitarLayers guitarlayers.com
Will this come to android? This is exactly the app I've been looking for to work my scales
Its just the pentatonic scale with a b5 as a passing tone.
Wherever the major chord is? Just go back 3 frets and play pentatonic minor. Done. 🙂
Major Pentatonic added #9
So it is basically just a major pentatonic with a passing minor third..?
This seems Keith richardsy
No b5? b7?
Jay Allan
#9 or +9
Minor Triad Arpeggio
5 basic + 10 Vertical shapes
Triads are fundamental music building blocks. Here are some Minor Triad Arpeggio shapes from the 5 CAGED to the 10 VERTICAL ones.
All shapes obtained automatically with guitarLayers guitarlayers.com 👇 👇
bhai ye kya hai? Sandesh Sorate
Major Triad Arpeggio
5 basic + 10 Vertical shapes
Triads are fundamental music building blocks. Here are some Major Triad Arpeggio shapes from the 5 CAGED to the 10 VERTICAL ones.
All shapes obtained automatically with guitarLayers guitarlayers.com 👇 👇 👇
7th Chords, Drop Voicings and related String Sets
This article explains how to deal with 7th chords Drop Voicings and their Inversions, by choosing a convenient String Set.
👇 👇 👇
Seventh cords Drop Voicings, Inversions and string sets | guitarlayers
www.guitarlayers.com
The best and most organic way to place a given 4-notes drop voicings and its inversions on the guitar fretboard is by choosing a right String Set."Paul is human, you can relate to him. [...] Though he obviously has bags of inherent talent, he became that good because he practised, which gives hope to everybody. " - Jim Davies on Paul Gilbert
MODES: chord/scale mapping
Here some diagrams containing Dorian and Mixolydan shapes mapped respectively over some minor 7th and dominant 7th chord shapes along the fretboard.
All shapes, scale modes, layering automatically obtained with guitarLayers guitarlayers.com
Cool. Too bad there's no windows version.
Teachers doing powerful online guitar lessons with guitarLayers 😉
Want to know more about the Diminished Scale?
Read the article, see the video and learn how the amazing young guitarist Matteo uses this scale to perform some of his killer guitar licks!
👇👇👇
Matteo Mancuso Diminished Scale Lick | guitarlayers
www.guitarlayers.com
Matteo Mancuso favorite Diminished Scale shape, with arpeggios inside it, analyzed and mapped on the freyboard with guitarLayers.Will you do an iPad version ?
Matteo Mancuso killer lick on the Diminished Scale
This video shows young iper-talended guitarist Matteo Mancuso on his introductory lick on "The Chiken". Matteo combines a typical 4th’s pattern on the diminished h/w scale with some arpeggios built with the notes of the scale. The result, empowered by Matteo’s astonishing natural technicque and musical feeling, is insane!
Stay tuned for the full article.
Matteo uses guitarLayers and is a guitarLayers artist. guitarlayers.com
Matthew Burrows
Grande Matteo !!
We are proud to announce that the brilliant Matteo is among the guitarLayers supporters and artists.
Check out Matteo's unique and astonishing technique, the quality, and the versatility of his phrasing!
👇
www.guitarlayers.com/matteo-mancuso/
This dude is a beast! #fthepick
Minor (Maj7) Arpeggio
12 Vertical Shapes
All shapes automatically obtained with GuitarLayers guitarlayers.com
Any IOS or Windows version planed ?
Funny I just discovered the beauty if Min/Maj7 and now this!
Half Diminished Arpeggio
Vertical Shapes
👇
All shapes obtained automatically with GuitarLayers guitarlayers.com
Always wondering what these Chords/arpeggios were called. Benny Weinman from The Dillinger Escape Plan uses them alot!
Voice Leading on Stella by Starlight
A great video tutorial about voice leading using Drop 2 and no Drop voicing by Italian jazz guitarist Fabrizio. All voicings in this video are automatically generated with guitarLayers. Fabrizio is a very good musician and advanced GL user. Enjoy!
En esta ocasión te propongo aprender a utilizar la vieja escala pentatónica menor para conseguir diferentes sonoridades. Ello implica ubicarla a diferentes distancias de la fundamental y sobre todo, aprender a frasear de un modo diferente y a resolver en la nota deseada. Hay muchísimo por aprender aquí! Lección completa con esta y más opciones en el Blog:
carlosvicentblog.com/2015/02/09/multiplicando-la-pentatonica-menor-por-12/
Guitar Layer for PC Please!! 🙏
A basic video guide about Cmaj7 arpeggio shapes, by Chilean guitarist Alvaro Severino Ramirez using guitarLayers.
Arpeggio shapes obtained automatically with guitarlayers according to some user costraints (e.g. NPS, number of frets, string set etc.) guitarlayers.com
Minor 6th Drop2 Voicings
Hi friends! Here minor 6th voicings and inversions on three string sets, showed by degree.
All voicings and inversions on strings sets generated automatically with guitarLayers guitarlayers.com
Any news on realising the software for pc this year? Thanks
Rare photos of...
Not rare. I have all of these & much more .
Quinten Evans
Jimi Hendrix in the airborne infantry.
Jimi ❤️
How do you use a shape like this?
The answer depends on harmony and is not that obvious for many
Can anyone make a video using this pattern and how to apply? Thank you and much appreciated 👍
I used guitarLayers to create this scale lesson (with many others linked) lifein12keys.com/guitar-modes-guide-to-modal-shapes/
... Anyway I preferably use this pattern as a Dorian mode
Squeeze your fingers
Natural minor scale,/dorian mode/c major scale/mixolydian mode/locrian mode
Interested, kindly do some demo on how u do it? Thanks
Just play what you feel.
C / Am and my favorite G / Em
Its minor scale..
A / F#m
Choose your root first... 😝
Aeolien
Natural minor scale
Double Drop D tuning
DADGBD
Now guitarLayers supports (and can find chords on) some of the most common drop tunings: here's a beautiful sounding Gm6 chord 😉
"You know what I think? If I am tired now, I don't mind, because I have eternity to rest." - Andrés Segovia
The Master.
Voodoo Blues Scale
Teachers creating interesting lessons by mapping uncommon scales with guitarLayers 😉En esta lección te quiero hablar de un sonido blues tan común como interesante: la escala Voodoo Blues. La estructura interna es totalmente idéntica a una escala de blues menor (1 b3 4 b5 5 b7) a excepción de la b7, que se sustituye por la 6. (1 b3 4 b5 5 6) Es sorprendente como cambiar una sola nota en un grupo de sonidos puede tener un efecto tan notable!
carlosvicentblog.com/2018/02/05/la-escala-voodoo-blues/
Mary ThePhoenix Di Canito Ignazio Schirone
Today exploring arpeggios inside scales with guitarLayers 😉
I hope it will become available for ipad too...
Hey which app is that
The Minor Bebop Scale (Five Shapes)
Here's one of the most used scales among jazz players and exploited today by guitarist of all genres.
All shapes and notes degrees automatically obtained with guitarLayers guitarlayers.com
C-7 e F7 bebop
Looks like a C Dorian scale with the added major 3rd ..
Thank you!
thank you
Thanks
Thank you 🙂
Lovely thnx
👍
Yassine Ezz..
Thank you
Harmonic Major Scale
Here the Harmonic Major scale Vertical Shapes showing notes degrees and the same vertical shapes without repeated notes respectively on the 2rd and 3nd string.
All shapes automatically obtained with guitarLayers guitarlayers.com
New 2.3.0 update available on the App Store!
With this update you can now work with the following tunings:
Guitar 6 Strings C G C F A D (Drop C)
Guitar 6 Strings D A D G B E (Drop D)
Guitar 6 Strings D A D G B D (Double Drop D)
Guitar 6 Strings C G C G C E (Open C)
Guitar 6 Strings D A D F# A D (Open D)
Guitar 6 Strings E B E G# B E (Open E)
Guitar 6 Strings D G D G B D (Open G)
Guitar 6 Strings E A E A C# E (Open A)
Guitar 6 Strings D G C G C D (Open Page)
Guitar 6 Strings C A C G C E (C6)
Guitar 6 Strings D A D G A D (Celtic)
Guitar 8 Strings A D G D G C E A
Guitar 8 Strings A E A D G B E A
Win or android would be nice...
Still no windows version?
C Diminished Scale
Constructing a C Diminished Scale shape with a convenient custom notes-per-string distribution (1 4 4 2 4 3)
guitarlayers.com
Pentatonic Scales inside the Lydian Mode
Interesting lesson about Lydian Mode and related Pentatonic scales, with guitarLayers 😉El modo Lidio, alberga la posibilidad de tocar tres escalas pentatónicas sin incluir ninguna nota que se salga de la sonoridad.
Modo Lidio: 1 2 3 #4 5 6 7
Pentatónica mayor desde el grado I: 1 2 3 5 6
Pentatónica mayor desde el grado II: 2 3 #4 6 7
Pentatónica mayor desde el grado V: 2 3 5 6 7
En esta lección lo explico e incluyo diagramas para este y los otros seis modos griegos:
carlosvicentblog.com/2017/11/13/pentatonicas-contenidas-en-modos-diatonicos/
Izzy W Starr ....... lol.... wot was I blabbing on about the other day?😉 Pentatonic scales within Lydian....
Young and promising student in a classroom with guitarLayers 😉Young and promising student in a classroom with guitarLayers 🙂
pity this app/software is only available on mac and not windows....would love to have it....
Happy Birthday (some days ago) to one of the most important and influential jazz guitarist in history, Mr. Pat Martino!
There would be no modern jazz guitarist without him today.
🎸🎶 Maestro Pat Martino👏👏
🤘
Three-Note Voicings
It is not that uncommon, among jazz musicians, to use three-note chords that can work as more complex chords structures.
Three-notes chords often are more handy and essential and, if we have the ability to obtain quickly their inversions, we can obtain a lot of voicings that can work as seventh chords.
In the picture below we have the notes C D Ab that can work as: Amin (maj7), Fm6, E7 (b13), Bb7 (9).
Try yourself the sound ! 😉
All three-notes chords, their inversions on string sets and their equivalent seventh-chords, are automatically generated with guitarLayers guitarlayers.com
Mike Stern often uses this type of voicings!!!
Arpeggios inside the Major Scale
One of the most clicked posts on guitarLayers page...
guitarlayers.com
Krittaphatt Bootto
Please make it available for windows
Handy!
🎶.Very good 🎸👏👏👏👏
Sviluppate per android, grazie.
Magda Alexandra Grieco
Noel Carlon
Melodic Minor Scale MODES: 3 NOTES-PER-STRINGS
Melodic minor scale and its Modes are generally used to play, with no "avoid notes", over some specific chords with certain tensions as showed below:
C melodic minor -> Cm (maj7)
D phrygian natural 6 -> D7 sus4 (b9)
Eb lydian augmented -> Eb maj7 (#5)
F lydian dominant -> F 7 (#11)
G mixolydian b13 -> G7 (b13)
A locrian natural 2 -> A min7 b5 (9)
B superlocrian -> B7 altered
All scale modes and note-per-string distribution, automatically obtained with guitarLayers guitarlayers.com
Ooooh careful, playing this scale descending was considered the Devil's scale back in the day , a big no no 😆😈🤘 amazing how just 1 interval change from a Major scale can sound very different . Some call it the Jazz scale I think . If you start from the 7th Ascending it's Diminished , STone-Tone-STone-Tone up to the 4th . Then WholeTone from the 3rd . That Minor3rd is Lovely 😆👍
Lost as hell on this !! Where do place my damn fingers!!!
Vindell Smith
Somebody help me to understand this
Fernando Marín , José Caballero Olivares
Overlapping scales & related chords
Automatically finding chords (and inversions) that harmonize Melodic Minor Modes.
Overlapping chords with melodic minor scales shapes, all 12 keys, with guitarLayers.
guitarlayers.com
Great info
Nice
Modes of the Melodic Minor Scale
(visualized by degrees)
Melodic minor scale and its Modes are generally used to play, with no "avoid notes", over some specific chords with certain tensions as showed below:
C melodic minor -> Cm (maj7)
D phrygian natural 6 -> D7 sus4 (b9)
Eb lydian augmented -> Eb maj7 (#5)
F lydian dominant -> F 7 (#11)
G mixolydian b13 -> G7 (b13)
A locrian natural 2 -> A min7 b5 (9)
B superlocrian -> B7 altered
Important note for our most active fans:
by regulary interacting or sharing our contents you will be eligible as a "TOP Fan" by FB.
We will publish periodically some special and exclusive contents for our most active fans! So... keep interacting and sharing 😉
Modes of the Melodic Minor Scale with Scale/Chords Overlapping soon available for our Most Active Fans!
Vertical CAGED shapes, scale's modes and scale's visualization by degrees automatically obtained with guitarLayers guitarlayers.com
Santina
Amazing! Thank you for this
Excelente información
Personally, I prefer 3 notes per strings. I really don't find these 4 notes/2 notes patterns useful at all
Thanks!
Any chance of an iPhone app?
Thanks great info
Thanks A Ton
Romain GuitarCook Morlot
Personally, I use this knowledge for triad pair improvisation. B altered: play A dim B dim, or C minor D minor, or Fmaj G maj. Other combinations eg with Eb aug are also possible of course, but using 2 neighbouring triads of the same quality saves thinking while playing.
My mind has blown with it😁😅still learning...
Danny Holloway
Thank you so much 🙂
Rad thanks
This is very helpful. I am still having problems putting my arms and ears around the sound of this scale and how to really use it. Trying though!!
Thanks for sharing this one. Interesting stuff to study. 👍👍👍
Pentatonic Scale on Two Strings
Visualizing scales horizontally on the fretboard allows us to play them exploring new melodic ideas and new intervallic patterns.
Here a C minor Pentatonic Scale on sets of Two adjacent strings and sets of Two alternate strings for string skipping approach .
Explore them, find your way and please... Share!
Scale copied on multiple fretboard and arranged on string sets automatically with guitarLayers guitarlayers.com
Minor Seventh Chord Substitution
In many situations, where we have a bass player, we can avoid to play the root and substitute it with the ninth.
If you apply this process to all the inversions of a minor seventh chord you will come up with the inversions of a major seventh chord, as you can see on the diagrams.
So that, any major seventh chord and its inversions can work as substitution of a minor seventh chord. (e.g. Cm7 -> Ebmaj7)
Substitutions process, inversions on strings sets and chord identification, obtained automatically with guitarLayers guitarLayers.com
Gian Patrick Peñafiel
2 5 1 Minor Progression in C
Five Scales Shapes + Arpeggios in C
For guitarLayers users: on the forum the .exgl file containing Five Scales Shapes + Arpeggios in C. Import it with guitarLayers, then clone it to edit and transpose shapes in all keys. Use keys modifiers [Shift] + [Ctrl] to transpose automatically shapes of all fretboards in a group!
www.guitarlayers.com/forum/main-forum/
2 5 1 Minor Progression
Today (and not just today!) learning how to improvise over this must-know progression, in Twelve Keys, by visualizing scale-arpeggio shapes in Twelve Positions!
Scale-arpeggio vertical shapes, overlapping, transposition in all keys and in all positions automatically obtained with guitarLayers guitarlayers.com
Where do you get this? I bought the program already.
Damn, nothing for iOS, i would purchase this in a split-second! 😞😞😞
Thanks to the great guitarist and guitar teacher Kenny from Montréal, Canada! 😉
Diatonic Sixths Intervals
An interesting lesson from the Chilean guitarist Alvaro about diatonic intervals using guitarLayers.
“I see myself forever and ever as the ridiculous [person], the lonely soul, the wanderer, the restless frustrated artist, the [person] in love with love, always in search of the absolute, always seeking the unattainable.” - Henry Miller, Stand Still Like the Hummingbird
Triads inside Melodic Minor:
Second inversion
Here we have triads, in Second Inversion, inside each one of the five melodic minor scale shapes.
For those who missed them, look at the previous posts on the page to download the same scale harmonization with triads in Root Position and First Inversion.
All shapes, scale harmonization, triad inversions, scale-arpeggio overlapping automatically generated with guitarLayers. guitarlayers.com