Guitar Theory Studio

Guitar Theory Studio is a practice companion for guitarists who want to actually understand the fretboard, not just memorize shapes.

FRETBOARD EXPLORER
Visualize any scale or mode across the entire neck, in any key or tuning. See CAGED system shapes, intervals, and note names update instantly as you experiment. Compare two scales side by side to see exactly which notes change.

CHORD & PROGRESSION BUILDER
Build chord progressions and explore voicings with smooth voice leading between chords, so the shapes move as little as possible from one change to the next. Hear how progressions sound with built-in audio playback.

Start from a library of 20 classic progressions — the ones behind songs like Don't Stop Believin', Stand By Me and Sweet Home Alabama — in any key you like. Every chord is numbered in both Nashville Number System notation and Roman numerals, so you can read a progression as theory and transpose it to any other key instantly.

ARPEGGIOS
Discover arpeggio sweep patterns and positions across the neck for any chord quality, with clear fingering guidance, generated from the progression you actually built.

PRACTICE LOOP
Drill major, minor, harmonic minor and melodic minor as three-notes-per-string patterns across all seven positions, plus minor pentatonic and blues boxes. Set a tempo and time signature, get a metronome count-in, and loop ascending and descending until the shape is in your hands instead of on a diagram.

Every tool shares the same fretboard engine, so what you learn in one section carries over to the next. Chords and scales are spelled the way the key is actually written — B flat, not A sharp — so what you read here matches what you read anywhere else.

Save your favorite progressions and settings to your account, share them with a link, or export a chord sheet as an image.

Guitar Theory Studio offers a free tier to explore the app — the fretboard explorer and the chord and progression builder are free, no account needed — with a Premium subscription (monthly or yearly, with a 7-day free trial) that unlocks the full practice toolkit. Subscriptions can be managed or cancelled anytime from your Google Play account settings.

Whether you're a beginner trying to make sense of the fretboard or an experienced player looking to deepen your theory knowledge, Guitar Theory Studio is built to make theory practical, visual, and fun to practice.