The “President’s Own” U.S. Marine Band held a concert yesterday where Landres Bryant played Gregson’s Tuba Concerto (Allegro mvt). Landres is from my home town here in West Palm Beach, FL. Landres got his BA in tuba performance at Michigan and his Master’s in performance at Yale.
About 18 years ago, when I played in the Palm Beach Garden’s Comm Band, I sat next to Fred Dart. To my right was Landres on tuba (I think Landres was a H.S. sophomore then). Great tone and I remember hearing him hitting 7 octaves of B flats warming up.
Direct link to Gregson's Concerto (Allegro deciso):
https://www.youtube.com/watch?v=cL-fgILOytA&t=1170s
Enjoy.