Guitar Theory Studio

Stop memorizing shapes. See the theory.

Quick theory quizzes (name the chord, train your ear, spell it right) and feature tours from Guitar Theory Studio — an interactive fretboard explorer, chord builder with real voice leading, arpeggios, guided practice, and the Daily: ten quick theory questions a day.

Every musical tool is free, no account needed.
► https://guitartheorystudio.com
Free on iOS, Android & web.