Labels:airplane | bulletin board | fence | trolleybus OCR: Valve Trombone Valves Bel Mouthpiece First valve Second valve Third valve Water keys tube tube tube HE VALVE TROM BONE differs from the slide PLAY trombone in that you cha nge its pitch bv using VIEWS three valves, as on the orchestral trumpet These valves give you grea ter flexibility but the soundi less brilliant Until the mid-20th century valve tr ombo nee were common in bands and theater orchestras: now they are most often heard in jazz E TYPES FACTS Bell differ hestral sound trombones commor
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