For a class of 30 students, typically you look to have 1 tuba player.
The school owns a tuba for student use.
A slight overbite is acceptable, while an extreme underbite would hinder success. Tuba players should have slightly fuller lips than average.
Stature is adequate to handle the size of the instrument.
Lips are medium to thick.
Thin lips tend to be better suited for trumpet.
Student is able to sing a common folk song or melody.
Any student can be successful on any instrument even if they do not possess these ideal physical characteristics. While these suggestions are preferred, they are not absolutely crucial in instrument placement. Dedication, passion, and hard work can overcome any physical obstacle.