sentences:  It got its name from the vibrating fans below the bars that could be turned on an off electronically, giving the instrument a vibrato effect.The Vibraharp, created in 1928 by J.C. Deagan, is the same instrument, but created out of aluminum instead of wood or steel.Due to its success, Leedy began manufacturing their vibraphones with aluminum in 1929, and they are still made of aluminum today.