By David R. Gillingham. Percussion Ensemble. For Percussion Ensemble (Percussion 1 (Bells, Xylophone, Crotales [shared w/ Percussion. 2], Vibraphone [shared w/ Percussion. 2]) Percussion 2 (Vibraphone, Crotales [shared w/ Percussion. 2]) Marimba 1 (4.3-oc