OtoTheory Japan

Chord progression and music theory tips, made with OtoTheory — a chord progression builder app.

From iconic progressions like the classic four-chord loop and the Canon progression, to practice ideas for beginner guitarists and songwriting / music production inspiration. Every sound you hear in these videos is played with OtoTheory.

OtoTheory is a free app that plays a full backing track as you place chords with a dial.
📱 Search "OtoTheory" on the App Store (or use the link below)

🎸 Web version & chord progression guides: https://www.ototheory.com