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.”