Unaccompanied Works Behind the Rock (1984) Orchestration: pianoDuration: 7 minutesPublisher: G Schirmer Inc. Goddess Variations (1999) Orchestration: pianoDuration: 3 minutesPublisher: G Schirmer Inc. Middle Passage (1983) Parenthetically (1986) Orchestration: pianoDuration: 8 minutesPublisher: G Schirmer Inc. Orchestration: clarinetDuration: 7 minutesPublisher: G Schirmer Inc. A Walk through the Shadow (1981) Orchestration: pianoDuration: 6 minutesPublisher: G Schirmer Inc.