The son of the composer Kazimierz Sikorski, he studied at the Warsaw Conservatory with Zbigniew Drzewiecki. Later, thanks to a scholarship from the French government, he studied in Paris with Nadia Boulanger. From 1975-76, as a recipient of a Senior-Fulbright Scholarship from the US government, he worked at the Columbia-Princeton Electronic Music Center in New York City.
- Sequenza I for Symphony Orchestra (1966)
- Homophony for 4 Trumpets, 4 Horns, 4 Trombones, Piano and Gong (1970)
- Holzwege (1972)
- Vox humana for Mixed Choir, 2 Solo Pianos, 12 Brass Instruments, 4 Gongs and 4 Tam-tams (1971)
- Other voices for 24 Wind Instruments, 4 Gongs and Chimes, (1975)
- Sickness unto Death (Choroba na śmierć) (1976). The words are taken from Søren Kierkegaard's The Sickness Unto Death, 1849
- Music in Twilight for Piano and Orchestra (1978)
- Strings in the Earth (1980)
- Das Schweigen der Sirenen (1986)
- Diario (1987)
In 2013, Bolt Records released an 2 disc album, V/A Solitude of Sounds – in memoriam Tomasz Sikorski featuring the work of Sikorski, as well as composers Száblocs Esztényi and Kasia Glowicka. Within the album's release, Glowicka wrote of the composer: "Sikorski's minimalism was unique to any of these native and foreign influences. He was a philosopher-minimalist concerned with the meditative properties of his compositions. His philosophy could be as well paraphrased by Queen's existential Bohemian Rhapsody - "nothing really matters, anyone can see, nothing really matters..." On the other hand, literally every note matters in his distinct minimalist style. It is here that I've identified most strongly with Sikorski's longing for brutal beauty. In this space, one can go so far as to be intentionally painful."
- Jens Staubrand: Kierkegaard International Bibliography Music Works and Plays, Copenhagen 2009. In English and Danish. ISBN 978-87-92510-05-1
- Biography and list of works
- Further Biography and list of works
- Tomasz Sikorski at PWM Edition
- Glowicka, Kasia. "V/A Solitude of Sounds – in memoriam Tomasz Sikorski". Bolt Records. Retrieved 26 February 2014.
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