ask them what options you have.
you want to get uncompressed PCM audio.
WAV or AIFF
Do you know how they plan on recording, multiple tracks?
FCP 7 will generally handle multi-channel WAVs.
16 or 24 bit at 48KHz (FCP 7 will do 96KHz as well).
Since you are going to work in a video program, you might as well throw a camera in front of the performers to act as a guide track and visual reference as to what is going on.