Appcompanist gives classical and musical theater singers and voice teachers full control over the world’s best piano accompaniment recordings, including tempo, key, melody help, fermata and more.

Appcompanist puts a level of control in your hand never before possible with recorded accompaniments. Transpose to any key; set any tempo; blend a melody guide track in and out in various octaves as piece plays; create additional rubato, fermatas of any length, ritardandos and accelerandos; set markers and create cuts and loop sections, all using simple on-screen motions that can be done with one hand while teaching or singing, and all without affecting musical quality. You can even save your tempo changes and fermatti to create custom versions that play exactly the way you want every time, but still respond to any changes you decide to make on the fly!