The Collaborative International Dictionary of English v.0.48:

Percussive \Per*cuss"ive\, a.
   Striking against; percutient; as, percussive force.
   [1913 Webster]

WordNet (r) 3.0 (2006):

percussive
    adj 1: involving percussion or featuring percussive instruments;
           "percussive music"

Moby Thesaurus II by Grady Ward, 1.0:

39 Moby Thesaurus words for "percussive":
   battery, bells, bones, castanets, celesta, chime, chimes, clappers,
   concussive, crash cymbal, crashing, cymbals, finger cymbals,
   gamelan, glockenspiel, gong, handbells, idiophone, lyra, maraca,
   marimba, metallophone, orchestral bells, percussion,
   percussion instrument, percussions, rattle, rattlebones, sizzler,
   smashing, snappers, tam-tam, tintinnabula, tonitruone, triangle,
   tubular bells, vibes, vibraphone, xylophone