Roland Audio Canvas UA-100 User Manual page 34

Monitoring the Audio Data While You Record a New Part
Record and Playback
Now you can record while listening to the existing sequence data. Rewind to the
beginning of the song, and begin recording. When you are finished recorded, stop.
Rewind to the beginning of the song, and play it back. Make sure that the previously
existing audio data and the newly recorded audio data playback simultaneously.
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