Seems to me you just need to do multi-track recording in a DAW with the MP3 on 1 track and your playing on the 2nd, 3rd, 4th, 5th etc tracks should you so choose. That way you can re-record yourself multiple times on those new tracks. You have the ability to mute those previously recorded tracks you do not want to listen to on your playback. A good DAW should also have the ability to give you a 'click track' if you do not have a stand-alone metronome.


BIAB2024
Windows 10 Pro
WA6NCB