Witold Lutosławski: String Quartet is a studio album by the Kronos Quartet, containing String quartet by Polish Witold Lutosławski composed in 1964 and first performed in 1965. This string quartet is an example of aleatory music, that is, music in which some element of the composition is left to chance, and/or some primary element of a composed work's realization is left to the determination of its performer(s). As Gerald Gold noted in a review of the Kronos album in The New York Times, "the Lutoslawski composition integrates notated music with chance performance."