Twelve interactive apps, a notated music library of over 2,400 pieces, video courses, a full podcast archive, curated downloads, and a working community — built for real guitarists, from CAGED-stuck beginners to jazz pros hunting fresh voicings. One login. One price.
Reference, explore, compose, practise — twelve interconnected apps that speak the same language, built by a working professional across forty years of playing, teaching and writing.
Every app in GMI Premium was built by working guitarists to solve a real problem — not to look pretty in a marketing screenshot. Click any infographic below to see the app in detail.
Partly free
Explore every voicing on the guitar — Drop 2, Drop 3, Drop 2+4, shells, extended. Hear it played, see it on the fretboard, understand why it works. Then build a progression from the shapes you are looking at and play it back — open at every tier.
Pro
The full catalogue of chord qualities — every extended and altered colour a jazz or contemporary player reaches for. Filter by voicing type, see each shape laid out across the neck with correct fingerings, send it on to another app.
Pro
Build a chord sequence and hear it voiced with real voice leading — each chord chosen to move smoothly into the next. All keys, all voicing families, PDF and PNG export.
Pro
Polychords, upper structures, and the colours above the chord. Built directly on the material in Ged's book Upper Structures, Synonyms & Slash Voicings For Jazz Guitar.
Partly free
Read with intent. Build real reading fluency across three literacies — single-line, rhythm chart, chord-melody. Self-hosted Verovio 6.2.0 engraving. The same 700+ pieces a free account can read. All eight grades on Pro.
Pro
Practise against real backing tracks with bass and drums played by professionals. Record yourself, get scored on timing, tempo and pitch accuracy, and watch your progress build session by session.
Partly free
Over 2,400 notated pieces spanning four centuries — classical, folk, traditional and jazz, all graded 1–8. A free account opens 700+ of them: every piece at Grades 1–3, plus 400+ Guitar Loot arrangements free at any grade. The full library on Pro. Notation, playback, one-tap handoff to Sight Reader.
Free to all
See how every key, chord and scale connects. A visual map of harmony you can navigate, zoom into, and send any node straight to Chord Lab.
Partly free
The workspace that ties it all together. Drop in chord diagrams, notation, images and notes. Arrange, snap, print, share — your ideas, one page.
Pro
Every chord that lives inside a key — laid out, playable, hearable. The fastest way to internalise how songs actually work.
Free tier
Every term, every concept, plain-English explanations with playable examples. The reference you'll actually use.
Free tier
The cycle of 4ths/5ths as a working tool. Trace root movement, explore dominant gravity, build turnarounds, feed the results straight into Progression Lab.
On every screen
Your teacher, on every screen. GMI's resident AI music guide — context-aware, never generic, never patronising. Answers real theory questions and explains any feature, wherever you are in the platform.
The apps are the engine. GMI Premium is a full learning platform behind them — a decade of filmed teaching, a podcast archive, downloadable resources, and a working community of guitarists.
Drop Two Voicings — 13 lessons, around thirty hours of study, companion to Ged's book. Plus How To Play Barre Chords, Beyond Barre Chords, Minor Pentatonic Scales, Fingerstyle Guitar Techniques and Advancing Guitar. All free with a free account.
Triadic Inversions · Creative Arpeggios · Harmonise & Arrange A Jazz Standard · Overjoyed, a full solo arrangement · Streets Of London chord melody · The Theorbo Masterclass, filmed at Edinburgh Napier University. Video, PDF and audio together.
Standalone deep dives — right-hand technique, three-note-per-string fretboard work, finger stretching, and a 28-minute tapping lesson with a 45-page book and backing tracks. Nine scale lessons from chromatic through to diminished. A Nigel Clark jazz chord-melody lesson with notation and play-along audio at three speeds.
61 episodes with working musicians, teachers and industry figures. The complete back catalogue, no limits — start anywhere.
Backing tracks, chord charts, scale references and notation PDFs alongside every lesson. The 22 Hit Songs and 33 Hit Songs email courses. GMI author books and downloads, with bonus book resources on Pro.
A working space, not a dead Facebook group. Introduce yourself, post what you're working on, ask Thomas a theory question, and get answers from other guitarists and directly from Ged. Pro and Founding Members also get the Founding Members Lounge.
Free gets you inside straight away — no card. Pro unlocks everything. The first 200 members lock £9.99 a month for as long as they stay.
Free accounts open at launch — no card, sixty seconds, and you're inside. Founding places are limited to the first 200.