A '''brass instrument''' is a musical instrument (usually made of [[brass]]) that is played by blowing into a mouthpiece. The air travels through a series of tubes and out of a [[funnel]]-shaped endpiece, producing a loud, sustained note. The note produced can be altered by blowing harder or less hard, by altering the position of the [[lip]]s, or (on some instruments) by pressing one or more valves. The [[trombone]] also has a sliding section that changes the note by increasing and decreasing the length of tubing. | A '''brass instrument''' is a musical instrument (usually made of [[brass]]) that is played by blowing into a mouthpiece. The air travels through a series of tubes and out of a [[funnel]]-shaped endpiece, producing a loud, sustained note. The note produced can be altered by blowing harder or less hard, by altering the position of the [[lip]]s, or (on some instruments) by pressing one or more valves. The [[trombone]] also has a sliding section that changes the note by increasing and decreasing the length of tubing. |