This enables you to check the key positions and timing against the piano roll while a song is playing.

When pinching in/out to the left or right in the piano roll area, you can change the number of keys in the keyboard display area by swiping to change the position.

• It can be used either during playback or when playback is stopped.

Playback methods for practicing

When practicing your favorite songs, you can adjust the tempo or practice the left-hand and right-hand parts separately so that you make progress more quickly and easily.