The Tides of Manaunaun

Opening bars of *The Tides of Manuanuan*, showing thirteen-note tone clusters. Massive clusters of 25 notes or more, to be played with the left forearm, occur later.

The Tides of Manaunaun is a short piano piece in B♭ minor by American composer Henry Cowell (1897–1965). It premiered publicly in 1917, serving as a prelude to a theatrical production, The Building of Banba. The Tides of Manaunaun is the best known of Cowell's many tone cluster pieces.