Guitar Chord Composer

370+ chords at your fingertips with a root x type finder. Tap to hear them, auto-play progressions, and compose your own songs. Your everyday guitar companion.

Guitar Chord Book brings together everything you need to find, hear, and build guitar chords in one app.

[Find 370+ chords instantly] 12 roots x 31 types fully covered — major, minor, 7th, M7, m7, 6, sus4, add9, dim, aug, and tensions like 7(9), 7(b9), 7(#9), 7(13), M7(13), m7(11) and more. Just pick a root and a type to see the fingering at once. Each chord includes multiple voicings, so you can explore other shapes up the neck.

[Tap to hear it] Built-in realistic guitar samples play every time you select a chord, so you learn by ear. Compare how each voicing sounds.

[Auto-play progressions] A rich library of classics — Royal Road, Canon, ii-V-I, 12-bar blues and more. Play any progression back at your own tempo with the current chord highlighted.

[Compose your own songs] Line up chords, set tempo, time signature, sections and repeats, then save your own progression. Preview as you go, or start from a built-in progression and edit it.

[Handy practice tools]

• Capo calculator: transpose keys and find the capo position
• Metronome: 40-240 BPM, multiple time signatures
• Strum patterns: 8-beat, 16-beat, bossa nova, reggae, funk and more
• Practice log: track daily practice time and streaks on a calendar

[Beginner guide] The first 8 chords to learn, plus practice tips.

[More]

• Favorites for chords and progressions
• Left-handed mode (mirrored diagrams)
• 9 languages supported

From beginner practice to advanced voicing hunts to songwriting — one book that does it all.