GMI Premium Pro gives you full access to every app on the platform — Chord Lab, Chord Architect, Progression Lab, Structure Lab, Diatonic Key Builder, Sketchpad, Practice Studio, Cycle Wheel, Harmonic Universe, Guitar Library, Sight Reader, Theory Glossary, and Thomas Balfour Q&A.

You also get video resource downloads, community access, and every new app and library addition as they’re built.

£14.99 per month or £129 per year. No lock-in, cancel anytime.

Built by professional guitarist, composer, and author Ged Brockie — every voicing, grade and definition checked by a working musician.