I have played the tuba since 5th grade (1991), and I have had a beard since last December. These two parts of my life did not get along well at first. Playing the tuba with facial hair presents a problem because some of the hair prevents a good seal between my mouth and the mouthpiece. I spent several frustrating weeks barely able to play, and I seriously considered shaving it all off!
Fortunately, I found a much last drastic approach to be effective. After some experimentation, I have found that if I trim the hair right below my lower lip (soul patch) and my mustache for a bit above my upper lip, I can maintain the seal and play just as well as I did when I was clean shaven!
Behold, my tuba beard 🙂