Ton De Leeuw has been played on NTS shows including SKYAPNEA, with Litany Of Our Time : 8 Tableaux For Soprano Solo, 3 Male Voices, Instrumental Ensemble, Live Electronics And Tape first played on 30 April 2015.

Ton de Leeuw (born Rotterdam, 16 November 1926, died Paris, 31 May 1996) was a Dutch composer. He was known for his experiments with microtonality.

Taught by Olivier Messiaen and others, and influenced by Béla Bartók, he was a teacher at the University of Amsterdam and later professor of composition and electronic music at the Sweelinck Conservatory in Amsterdam from 1959 to 1986. Among his notable students are Gheorghi Arnaoudov, Michail Goleminov, Walter Hekster, Liza Lim, Chiel Meijering, and Otto Sidharta.

He studied ethnomusicology with Jaap Kunst in 1950-54 [1]and the encounter with the Dagar brothers and Drupad on his first visit to India in 1961 deepened a lifelong interest in "transculturation. He also visited Japan in the 1960s. This manifested itself in his work for Western instruments by the occasional use of microtonality as well as in compositional plans; Gending (1975[2]) for Javanese gamelan is a rare foray into writing for non-western instruments.

He wrote three operas, all to his own libretti, including a television opera Alceste (1963, after Euripides), the one-act De Droom ("the Dream")(1963) Antigone (1989–1991, after Sophocles).