Should the trombone rest on your shoulder?
Holding the Trombone
Sitting with good posture, bring the instrument to your face, not the other way around. Rest the trombone's bell section seated on your shoulder. Check to make sure that your slide is parallel to the floor or slightly angled down and ensure that your head is held up straight.
How do you look after a trombone?
To maintain the exterior of the instrument, either wipe it gently with a polishing cloth, or polish it with a lacquer polish. To clean dirt from a nickel-plated instrument (of if the lacquer is peeling and the surface is starting to rust), use a metal polish which includes a polishing agent.
How heavy is a trombone?
The trombone weighs about 1,3 to 2,8 kilos (3,0 to 6,1 lb). Your left arm weighs about 4 to 5 kg (9 to 11 lb) and you keep both of them up at the same time. All the time when you play. Of course, you can keep the trombone and the left arm up in a playing position, with continually tensed muscles.