How is the pitch changed on a trombone?

On a trombone, the pitch is changed by moving the slide in and out. The slide is a U-shaped tube that connects the mouthpiece to the bell of the trombone. When the slide is moved in, the length of the trombone is shortened, which raises the pitch. When the slide is moved out, the length of the trombone is increased, which lowers the pitch.

In addition to moving the slide, trombonists can also use their lips and tongue to change the pitch of the trombone. By changing the shape of their lips and tongue, trombonists can produce different timbres and articulations.

The trombone is a versatile instrument that can play a wide range of notes, from low Bb to high F. It is used in a variety of musical genres, including classical, jazz, and popular music.