Well maybe I need to learn mandolin. I play recorder (Peter T. I prefer the sound of sopranino recorder to tin whistle), and like to sing a cappella. Funnily enough, a friend and I are working on a piece to do at an open stage next week which features recorder, mandolin and both of us singing. Then again I'm not that fond of a lot of twiddling around at the upper end of the guitar. Hmm. maybe I'll just keep looking at basses abd cellos.