The Canon, like any mini DV camcorder can record PCM at 48 kHz, 16 bits which is as good as a CD. So why would you want to get a separate recorder, unless your going to multi-track and mix it later. With a piano and violin, whichever method you're going to use (XY, MS or individual mics) you're only going to end up with 2 tracks, so why not put them straight into the camcorder?