Chord progression creation and practice app

Make chord progressions more fun and intuitive

This app makes it easy to create and edit chord progressions. You can also generate a simple accompaniment for your creations automatically, or practice chord forms using your fingers.

Easily create a variety of chord progressions

With a wide variety of chords and intuitive controls, you can easily create chord progressions. You can enter chords in either degrees or chord names. You can also change the key freely.

Versatile chord forms

This app supports 46 chords for both guitar and keyboard. Slash chords are also supported. For keyboards, you can display beautiful voicings that can be used in actual performances. For guitars, you can display forms that are suitable for each playing style, such as strumming and fingerpicking. (Some slash chords are not supported due to the limitations of guitar chord forms.)

Automatic accompaniment for instant music playing

You can generate a simple accompaniment for your created chord progressions automatically. This allows you to quickly check the atmosphere of the actual performance.

Practice chord forms using your fingers

You can practice chord forms using your fingers. This can help you improve your understanding and playing skills of chord forms.

Who this app is for

• People who want to create chord sheets or chord progressions


• People who want to play music


• People who want to practice chord forms