Let’s not gild the lily. The announcement for this concert surely says it best. “Sandbox Percussion, a Brooklyn-based percussion ensemble of established leaders in contemporary art music, has teamed up with the acclaimed composer Michael Torke for BLOOM, a new piece composed for the group. BLOOM uses a series of interlocking rhythms that create a groove when played together, using each player’s drums (non-pitched instruments), and vibraphone and marimbas (pitched). ‘Just as shoots of plants push through dirt erupting in blooms, the vibes and marimbas burst forth from the drums,’ writes Torke in his program notes. ‘In other words, this music has an organic profile, unlike other recent pieces of mine.’” Admission is free, but space is limited. Register in advance. —Matthew Gurewitsch