A.Yes, you can. The RC-50 features three different overdubbing modes (see the following table). To re-record a portion of a phrase, choose "MOMENTARY PUNCH-IN" as the overdubbing mode.

To switch between overdubbing modes:
Press the [OVERDUB MODE] button to change the overdubbing mode. Each time you press the button, the overdubbing mode will change and the corresponding indicator will light.

(2006/01/18)