Ocarina from Tsuchibue Kobo Pieta Alto 4C 12-hole plus 1 hole Basically, it's an alto C 12-hole ocarina, with a single tube ranging from C below middle C to F above middle C. However, I've attached another sub-tube! For those who absolutely want the notes above that! This is a single extra hole that produces F# when pressed and G when released, just two notes added without being greedy. It's pressed with the first joint of your right index finger. You can enjoy it as a single-tube ocarina normally, and the joy of finding a song where you're glad to have that extra note when you need it will be all the more special.