Chamber Opera. Libretto by Oliver Sacks Christopher Rawlence and Michael Morris after The Man Who Mistook His Wife For A Hat by Oliver Sacks. First performed on 27 October 1986. Duration 1hr 10 minutes. A full score isavailable for hire or purchase performance material is available for hire. Scored for Soprano Tenor Baritone Harp Piano 2 Violins Viola 2 Cellos.