I don't need another mouthpiece; but . . .
So what is bottom A on a bari sax?, and what if it is a low Bb bari?Bottom Bb on a saxophone is Bb1 IMO. It's not any kind of official cafe position though.
Is A1 on a bari sax the same as A1 on a tenor.
My feeling is that the bell notes should be called A0, Bb0, B0.