Bobo's text for tuba was the first I bought when I started playing tuba in 2009. Very grateful for his instruction through the text. I suppose the only other tubist with equal skills might be Arnold Jacobs, but that is another subject for another day. Best regards to him in his recovery.
U.S. Army, Retired (built mid-1950s)
Adams E2 Euph (built 2017)
Boosey & Co. Imperial Euph (built 1941)
Edwards B454 Bass Trombone (built 2012)
Boosey & Hawkes Imperial Eb tuba (built 1958)
Kanstul 33-T lBBb tuba (built 2010)