Trombones

The trombone is a musical instrument in the brass family. As with all brass instruments, sound is produced when the player's lips vibrate inside a mouthpiece, causing the air column inside the instrument to vibrate. Nearly all trombones use a telescoping slide mechanism to alter the pitch instead of the valves used by other brass instruments. The valve trombone is an exception, using three valves similar to those on a trumpet, and the superbone has valves and a slide.

thumb|Left to right: replica alto, tenor and bass sackbuts, in Museu de la Música de Barcelona. thumb|Four sackbuts: two tenors, left & middle; alto, top; bass, right. A sackbut is an early form of the trombone used during the Renaissance and Baroque eras. A sackbut has the characteristic telescopic slide of a trombone, used to vary the length of the tube to change pitch, but is distinct from later trombones by its smaller, more cylindrically-proportioned bore, and its less-flared bell. Unlike the earlier slide trumpet from which it evolved, the sackbut possesses a U-shaped slide with two pa

Low-pitched member of the trombone family of brass musical instruments

high-pitched member of the trombone family of brass musical instruments

a brass musical instrument in the trombone family with valves