Excellent accordion sound! The folks complaining about sound should program a better one! I agree that we need more keys. Another row of base keys is needed outside of the major keys near the bellow, and the accordion need more octaves in the base section and in the treble keyboard. Otherwise, the accordion plays well on iPad, and even on the iPhone, though a bit crimped on the iPhone. Great work in progress with amazing digital sound. Thanks! Eagle Eye 7