More youtube searching – “prokofiev brass” – and found this from the AYO. The tubist recorded this using his phone. The video’s sideways, but who cares! I’m McLuvin’ his sound.
The build-up starts around 1:30 with low brass in around 1:55 (and again at 3:50). Great tone! Fat sound! Clean attacks! No apologies! I notice he’s breathing a lot but there’s no lack of sound with upper brass sustaining.
I also noticed the lick around 3:36 where tuba backs the trumpet. Low D down to pedal Eb is nice and clean. I want to work with the trumpet who’s got this in OT to make sure we’re together.