Duo Accordion

Hold a key. Move the bellows. Make it sing. Recorded accordion reeds, piano keys and a Stradella bass board, in your pocket.

An accordion you can play anywhere.

Play with the fold on iPhone Duo. Hold a key and open or close your phone to move the bellows and shape the sound. The instrument adapts between the inner and outer displays. Touch playing remains available on every supported iPhone and iPad.

Play melodies on the piano keys and add basses and major chords on a Stradella bass board. Recorded accordion reeds bring the instrument to life.

On iPhone, press the keys and use the device volume buttons to shape the loudness. On iPad, play both hands together; Easy Play keeps the air flowing while you slide across the bellows or adjust the brass meter.

Full screen on iPad gives you more room, more keys and more bass buttons. On iPhone, switch between keyboard and chords.

Explore the interactive playing guide and listen to a little waltz.

Concert Accordion, an optional one-time in-app purchase, adds minor and seventh chords, the endless key wheel that moves the left hand into any key while the piano stays put, and three more registers: Musette, Cello and Master. Try it in the app before you buy.

Made for iPhone and iPad. Free to play, with built-in sounds that work offline. No account, ads or subscription. Available in 13 languages.