【實用音樂app】Polychord Mini|最夯免費app-綠色工廠好玩App

Polychord, the award-winning music app for beginners and experts alike now fits in your hand. Used in the studio by world-class bands to help write songs, polychord plays along while you discover interesting chord progressions and melodies. Polychord Mini sports most of the features of our flagship app, all in convenient package that you can take anywhere. Special introductory price, get it while it's hot.