"One of the things that's hard for tuba players, actually it's hard for everyone, is that you need to sell the concept of time when you are playing long notes. It's hard."
Whether you are taking an audition, playing in a chamber ensemble or performing in a symphony orchestra, selling the concept of time when you are playing long notes is a golden opportunity to stand out in a good way.
Why is that?
Because most musicians suck at it.
I have played next to some people in quintets over the years who have perfectly fine time and yet could not sell the concept of time on a long note to save their lives because they are too passive.
The best chamber ensembles in the world can shut off the lights and play a slow and beautiful piece of music perfectly together with absolutely zero visual communication. It's hard as hell but the greats have a hard time not spoon-feeding to you when their current note is ending and when the next note begins.
Looking for a way to stand out in the final round of a symphony audition or in a chamber audition? Make it painfully clear where your long notes are coming from and where they are going to and sell the hell out of the time while simultaneously taking cues from and reacting to the players around you.
Do that successfully and you will put yourself on a very short list of people being considered for that job.