Otto Sidharta finished his post-graduate study in composition and electronic music composition at Sweelinck Conservatorium in Amsterdam under the guidance of Professor Ton de Leeuw.
Robert Heppener, Daan Manneke, Ton de Leeuw, Huub Kerstens: Invisible Cities - modern compositions by Dutch composers.
Ton Koopman | Bon Ton | Ton de Leeuw | ton | The Bon-Ton | Reinbert de Leeuw | Phạm Duy Tốn | Vickers 6-Ton | Tôn Thất Đính | Ton Steine Scherben | Tôn Đức Thắng | Ton Caanen | Tee-Hit-Ton Indians v. United States | Short ton | Paul de Leeuw | One Ton Cup | Mong Ton Township | Je te rends ton amour | Ton-Ton Macoute | Ton Scherpenzeel | Ton Roosendaal | Ton Pentre | Ton Masseurs | Ton Hartsuiker | Ton | Ten Ton Chicken | Ostgut Ton | Mooi! Weer De Leeuw | Mong Ton | Le Ton beau de Marot |
Highly successful programmes have been those dedicated to the work of a single composer, such as Luciano Berio, Pierre Boulez, Elliot Carter, Franco Donatoni, Brian Ferneyhough, Mauricio Kagel, Ton de Leeuw, György Kurtág, Theo Loevendie and Luigi Nono.