I am buzzing a note on mouthpiece, but it's not coming out?

[Nick Pierce]

On the other hand, it may possibly (hopefully not) be the horn. I encountered one very large, 6/4 size CC horn a friend was borrowing. That same F simply would not play. Eventually, after much trial and error, we found it...with the fourth valve . Greater minds than mine may try and figure out why, but there it is.

[ztuba]

You may have found your note for early focal dystonia congratulations!!!! Try berp and try buzzing the note whilst inserting the mouthpiece into the receiver. Also try blowing EXTREMELY loud chromatics up to that note to see if you are playing the horn or fighting it.

[Tuba Guy]

On the other hand, it may possibly (hopefully not) be the horn. I encountered one very large, 6/4 size CC horn a friend was borrowing. That same F simply would not play. Eventually, after much trial and error, we found it...with the fourth valve . Greater minds than mine may try and figure out why, but there it is.

It's the same on my CB50...for some reason, that note only comes out as 2, and even then, it's a bit hard to get centered.

[Matt G]

You may have found your note for early focal dystonia congratulations!!!!

w.t.f.