I suppose to the uninitited like me there re similarities between the instruments. I would not be able to tell the diference with my eyes closed. Its a sweet sound he produces whatever it is.
Absolutely stuHow about a very small Pocket Trumpet as played by Don Cherry. Thinner tone I would say but sometimes sounds just like a normal trumpet.
Then there is the jazz trombonist Steve Turre who quite impressive playing Conch Shells (large sea shells) He is worth checking out on You Tube. I am sorry but being new here I haven't mastered the art of transferring video clips!!!!