Original Message from Michael Rubin deleted to save space-- He's saying the same thing I am-- Yes, the wheel is the circle of fifths-- We'll use C major--flat the fourth degree--that's first flat--overblow hole 6 for the Bb. Sharp the 7th--that's G, and it's crossharp, but you'd better overblow hole 5 so that you get the F# and can call 2nd position "1st sharp". Gary