Another Tuba and euphonium player here. I also participated in a couple 'Tuba Christmas' gatherings in Chicago.
While in the 74th Army band at Ft Benjamin Harrison in, I got a chance to meet and talk to The Great Bill Bell at Indiana University.
I play in section in a community band with a fellow who studied with Bill Bell, and have plaed in section over the years with a number of Bell students. Amazing man. I love his LP and which Golden Crest's copyright owner would let them do a CD.