Low Brass Problems with the Embouchure

[@josephc447]

Thanks you sir excellent advise , helped me before a jazz festival

[@hillaryheslop7219]

Very informative. thank you

[@EdwardYemilRosario]

Thanks!

[@ezrakowadlo]

Thank you.

[@estvm]

King 2B or 3B

[@1ranster]

hi what tpye of trombone is that?