Toy cams, entry level consumer and mid-range consumer camcorders have small lenses and imaging chips so low-light behavior will be poor. They also do not have manual audio control so if your band is loud, the audio will be poor.The least expensive cams - of which I am aware - that have manual audio control are the Canon HV230 and Sony HDR-HC9. Sorry. It is what it is.You can get the cheap cam for the video - but when you edit, replace the audio with audio captured by a field recorder like those from Zoom or M-Audio or Edirol among others... The field recorders have manual audio control - the good ones can use external mics - the best ones connect external XLR mics.