Help
Guides for every tool
How each tool works, what it's for, and ideas for practising with it. These guides apply to every GTK app; instrument-specific notes are called out where behaviour differs.
Getting set up
Chords
Chord Master
Browse by key, build chords note by note, or place your fingers on the fretboard to name a chord – then hear it whole or arpeggiated.
Chord Library
Searchable chord diagrams with strict or fuzzy matching, key filters, diatonic and borrowed chords, and favourites.
Custom Chords
Create your own voicings, name them yourself or let GTK detect the name, play them whole or arpeggiated, and export them to share.
Chord Build
Create your own chord: place fingers, mark strings open or muted, and let GTK detect the name.
Chord Explore
Select notes, or tap string and fret positions, and GTK names the chord.
Chord Transposer
Move a song’s chords to any key, with capo positions taken into account.
Theory
Scales
Scales, modes, pentatonics and world scales on a colour-coded fretboard, with a Positions view that shows shapes rather than note names, plus diatonic chords and Triads and Chords tabs.
Scale Sharing
Layer up to four scales on one fretboard, with shared notes as pie-slice dots and roots, 3rds and 5ths ringed.
Triad Sharing
Build a progression and see each chord’s triad tones on one fretboard, colour-coded per chord, with shared frets as pie-slice dots.
Chord Sharing
Type any chord name to map its notes across the fretboard with the root ringed, and compare it with up to three other chords.
Position Finder
Choose where on the neck you want to play and see a key’s notes right there – so you can stop sliding up and down the fretboard.
Circle of Fifths
Tap any key to see its modes, diatonic chords, Roman numerals and key signature.
Mode Converter
See how one mode becomes another, note by note and semitone by semitone.
Practice
Still stuck? See the FAQ or contact support.