"Sleep - Live Vocal Practice Tracks" is a captivating collection of live vocal practice tracks by the renowned composer Eric Whitacre. Released on October 1, 2012, this choral album offers a unique behind-the-scenes look at the intricate vocal layers that make up Whitacre's acclaimed composition "Sleep." The album features eight tracks, each focusing on a different vocal part—soprano, alto, tenor, and bass—providing a comprehensive guide for choirs and vocal enthusiasts. With a duration of 33 minutes, this album is a valuable resource for those looking to delve into the innovative orchestration and harmonies that Eric Whitacre is known for. Whitacre's "Sleep," with lyrics by C.A. Silvestri, is a standout example of his contemporary choral writing, praised for its unearthly beauty and imagination. This album is not just for performers but also for anyone who appreciates the art of choral music and the meticulous craftsmanship that goes into creating such masterful works.