I currently "triple" on bass guitar, double bass and tuba for gigs on a regular basis. Over the years, I have also earned money at gigs on keys (including church services & weddings, organ and piano), guitars of all kinds and styles from Friday night to Sunday morning (see my wiring mods threads on the Rickenbacker site), mandolin; over the years since starting on trumpet in 5th grade, I've played every brass instrument in concert as the personnel, parts & ensembles required; and I've sung in church choir, school choir, and backup for the bands I've been in since my voice changed. One time when I had a cracked tooth I called a friend to sub on a tuba parade band gig for me, and since it was a flatbed trailer gig and no flute players showed up, I even grabbed the flute book and a glockenspiel and played the flute parts on the glock for the gig.