Answer: xylophones

AnswerCrossword Clue
XYLOPHONESUpscale marimbas?
xylophonesXYLOPHONE, a musical percussion instrument consisting of a graduated series of wooden bars, usually played by striking with two small round-ended hammers
xylophonesA musical instrument played by striking a row of wooden bars of graduated length with one or more small wooden or plastic mallets