An Hour for Piano

Tom Johnson's An Hour for Piano was written in 1971. The piece began as a series of short, improvisatory sketches in 1967 when Johnson was accompanying a modern dance class at New York University. Johnson gradually expanded these sketches and added transitions between them, writing a piece that is to be played in exactly one hour. Achieving this goal requires an absolutely steady tempo for the duration of the piece, which Johnson has set at quarter note = 59.225 beats per minute.