Labels:airplane | bulletin board | fence | railing | trolleybus OCR: Valve Trombone Valves| Mouthpiece Bell First valve Sec ond valve Third valve Water keys tube tube tube HE VALVE TROMBONE differs from the slide PLAY trombone in that you change its pitch bv using VIEWS three valves, as on the orchestral trumpet These valves give vou grea ter flexibility, but the soundis less brilliant Until the mid-20th century valve ombo ne wer common n bands and theater orchestras now they are most often heard n jazz TYPES FACTS differ hestral sound trombones were
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