<prompt> Ke seletsa sefe sa mino se bapalang trombonist?nan  <response>: Instruction in English: What musical instrument does a trombonist play? . Response in English: A trombonist plays the trombone, which is a brass instrument with a telescoping slide mechanism used to vary the pitch. . Response in Sesotho: Sebapali sa trombonist se bapala trombone, e leng seletsa sa koporo se nang le mochini oa li-slide oa telescoping o sebelisetsoang ho fetola molumo. 