re: #82 albusteve

I have been researching the beginnings of the trombone, that mystifying brassy slide thing….I have concluded it was not invented by Al Hirt altho he sometimes took credit for it

The trombone goes way back to Roman days, about 200 B.C.E.
They became Germanic about a thousand years later, and were called sackbut, which means push-pull.
The trombone is basically a bugle with a movable slide, in effect making it an infinite number of bugles. I have been playing one for 40 years, and yes, I can be seen on youtube.