Masks, scored for flute, oboe, clarinet, violin, cello, percussion, and piano, is organized into eight sections that are based upon woodwind multiphonics. Each section is based on a single multiphonic or a combination thereof distributed across the wind instruments. These combinations constitute the sections of the piece as follows: I: clarinet, II: clarinet and flute, III: flute and oboe, IV: oboe and clarinet, V: flute, clarinet, and oboe, VI: no multiphonics, VII: oboe, VIII: flute. The eight sections represent the seven possible combinations of the three wind instruments (each of which feature at least one multiphonic), with the addition of one section sans multiphonics. Harmonic and melodic material for every section is derived from the spectral components of each multiphonic with the addition of other pitches that serve to enrich the harmonic content of the overall ensemble. These other pitches come from pitch-sets that are complementary to the pitch-sets of each multiphonic. The ability of every instrument to blend and distinguish themselves from one another is exploited in Masks through the interplay of short, violent gestures and soft, sustained gestures. Melodic lines often emerge covertly from within a multiphonic texture, and at other times a multiphonic is created synthetically through the layering of distinct voices.