Roland V-Piano Owner's Manual page 72

Playing songs and recording your performances
6.
Recording will begin when you begin playing from recording-standby mode or when you press the [F3 (REC
START)] button.
fig.songRec-7.eps
To exit recording-standby mode and stop, press the [F4 (REC)] button.
7.
When you're finished recording, press the [F3 (STOP)] button.
You will return to the song screen.
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