Steve Reich, piano; Shem Guibbory, violin; Ken Ishii, cello; Elizabeth Arnold, voice; Rebecca Armstrong, voice; Nurit Tilles, piano; Larry Karush, piano; Gary Schall, marimba; Bob Becker (marimba; Russ Hartenberger, marimba; James Preiss, piano; Steve Chambers, piano; David Van Tieghem, piano; Glen Velez, xylophone; Virgil Blackwell, clarinet; Richard Cohen, clarinet; Jay Clayton, piano; Pamela Fraley, voice.
Libretto by Christopher Rawlence based on Oliver Sacks's "The Man Who Mistook His Wife for a Hat" (1985). Dr P – Matthew Treviño, bass; Mrs P – Rebecca Sjöwall, soprano; Dr S, neurologist – Ryan MacPherson, tenor. The last 5 of the album's seventeen tracks: the final track of Scene III, followed by Scenes IV-VII.
