Composed between 1991 and 2012, the 20 sweepingly diverse and intricately melodic Etudes are among Philip Glass’ most beautiful and inventive works. Exploring a variety of textures, tempi and techniques, they provide an unintended but compelling self-portrait of the composer. “Piano solo concerts are among my favorite experiences,” says Glass, “the most essential basic dialogue… Whatever happens is happening directly between me and the audience … This is the first body of work where I’m really welcoming the world of pianists into my world.”