As a cuddy-wifter (Geordie slang for being left handed) I've got a left handed guitar, octave mandola, bouzouki and banjo, the last two of which I changed myself. It's a real problem if you came to music late in life (at 42 in my case) when it's just not on to learn to play right handed. There's much less choice with left handed instruments, and when I bought my octave mandola the nice man at the Music Room altered it for me. BUT - thank God for the harmonica, being left-mouthed is no problem, and I'm definitely ambidextrous when it comes to the Bodhran. Perhaps I'm in a clique all of my own...