Brass instrument with the largest mouthpiece
I believe the answer is:
tuba
(Other definitions for tuba that I've seen before include "Stop" , "Brass "oompah" instrument" , "Large brass wind instrument" , "horn" , "music-maker" .)
I believe the answer is:
tuba
(Other definitions for tuba that I've seen before include "Stop" , "Brass "oompah" instrument" , "Large brass wind instrument" , "horn" , "music-maker" .)