Singularity (2012)
piano solo

Robert Morris

Program Notes

Singularity is a realization of the 12-lyne combinatorial all-partition array I used in my composition Struck Sound of 2002. It contains all 58 twelve-tone aggregates of 12 parts with part sizes from 0 to 6, the 12 lynes being imbricated, all hexachord, 11 pc, 55-note strings related by transposition and inversion; in addition, the piece partakes of multiple octave doublings to articulate and distinguish the 12 lynes on the piano. Some new rhythmic techniques are used in Singularity, too. Due to these structural features—but not only these features--it is a bouncy, gregarious, and cheerful composition, reflecting on the happy summer days during which it was composed.