Disco - Etudes For Piano, Vol. I, Nos. 1-10

Publicado em 2003 por Philip Glass, consiste (como o título indica) em 10 peças para piano, as quais, foram compostas e tocadas por Glass. Citando o próprio: "The Etudes began for me in the mid-90s and I am still adding new music to this collection as I write these notes in 2003. Their purpose was two-fold. First, to provide new music for my solo piano concerts. And second, for me to expand my piano technique with music that would enhance and challenge my playing. Hence, the name Etudes, or "studies". The result is a body of work that has a broad range of dynamic, tempo and emotion. I hope to complete the second set of ten etudes, of which the first six are already composed, in the next few years."