Quote:

when i have a blues in F 12 bar blues piece and then press the transpose to C it does not change the piece to C?




Okay now is your base key C and you PROGRAMMED it in F? So you used F, Dm, Bb, C, etc....? If so, you need to change the BASE key down to G, one fourth lower. That will make your PROGRAMMED F be a C, your Dm be an Am, your Bb be an F, your C be a G, etc..... it will move the whole "sheet of music" down a 4th.

It sounds like you may have the wrong idea of what the "transpose" feature actually means. You program "tuned" in C. The transpose feature will change the "tune" key and move everything the corresponding amount of half steps.