In college, we put together a band to do one gig; Crazy Eddie & The Neutron Bomb Band (nobody named Eddie anywhere - but the name should give the time frame......)
It actually wasn't too bad. Perhaps not surprising, considering that the the lead player & bassist were both pros taking a break to try college, the drummer later made his living as a jazz pianist, and the keyboardist, a math prof, has 2 albums of originals.
I, of course did sound - but came up on stage to sing harmony on "Stand By Me' & "Tears On My Pillow" and lead on "Seeds & Stems" - and on "TOMP", I reached around the bassist & did a basic '50s line on the E & A up by the nut while went up around the 12th fret on the D & G and went all Phil.
Peter (who has told this often enough to have already heard any "reach-around" joke you might be tempted to make)