Only trouble with the bluegrass theory is that a single mic is not going to provide a stereo effect. In fact in most live situations you're not going to do anything too radical with the stereo field in case patrons on one side or the other are denied the privilege of hearing all instruments. In recordings there's a lot more choice and you'll hear centre or side solos, I think depending on how the mix is 'balanced' in that song section eg solo instruments often play against another instrument in which case they're probably on opposite sides.

Last edited by Matcham; 05/08/17 11:39 AM. Reason: typo