We know that a lot of realbass players double on electric, and we know that a couple of regulars here play piano. Just out of curiosity, what are some of the other instruments double bassists play professionally or semi-professionally or just for fun? My miscellaneous instrument of choice is the chromatic harmonica. I guess after hearing that stupid joke enough times about the thing being easier to carry finally sunk in. I'm no Toots Thielemans (who is?), but it's fun to take it to informal jazz sessions and noodle around. And it fits in my pocket.