Trombone

The trombone is a member of the brass family. As with all brass instruments, the sound is produced by buzzing the lips into a mouthpiece. A unique feature of the trombone is the slide. While other brass instruments change pitches by pressing valves to change the length of the air flow, the trombone player simply moves the slide in and out to the change the length of the instrument. Students who play the trombone should have a good ear and be able to sing in tune. Students who have an ability to match pitches will know when the slide is slightly too far in or out. But other than that, it’s a relatively easy instrument to start with.
(from beginband.com)
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Physical Features
While some might think that trombone players must have long arms, the truth is there are numerous accommodations that make it possible for students of all shapes and sizes to play. A slight overbite is acceptable, while an extreme underbite would hinder success. Trombone players should have slightly fuller lips than average.
 
Other Concerns
Great trombone playing takes good concentration, study, and a good musical ear. Many great leaders have excelled at trombone.

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