Try an put more breath if you can. Plus Im not a teacher for tuba, but try the uhm... not sure the name but you start with the high bB then the next note an each time you go back to the high b flat. IT's my advice for tuba. Like i said, im no teacher, just figured giving some advice for it. Plus one more thing do breathing exercises. Gonna need good lungs for the low low notes. Other than that your doing good. Keep it up
the dedication is admirable nice job :D
Try an put more breath if you can. Plus Im not a teacher for tuba, but try the uhm... not sure the name but you start with the high bB then the next note an each time you go back to the high b flat. IT's my advice for tuba. Like i said, im no teacher, just figured giving some advice for it. Plus one more thing do breathing exercises. Gonna need good lungs for the low low notes. Other than that your doing good. Keep it up