1. Thank you for your advice. No offense taken...I'm working on opening up my embouchure and I know that's my ultimate goal. (I also play trumpet and flute quite a bit, so I'm used to adjusting to another instrument.)

2. Just for fun: I like to tell non-tuba friends that I just bought a 1972 Olds ...

I recently acquired an Olds O-99 (3 valve). I'm mainly a trombone player, so I see on my tuner that I'm playing quite sharp. (Please don't judge on this!!)

As I work to loosen my lips and open my jaw, I'm thinking that I can add a Sousaphone tuning bit to help bring the instrument down to pitch ...