Lutosławski pursued studies in Mathematics at the University of Warsaw and earned diplomas in Piano (1936) and Composition (1937) from the Warsaw Conservatory. Amid the Nazi occupation of Poland, he participated in clandestine concerts featuring prohibited music.
His prewar compositions, notably the Symphonic Variations (1938), were predominantly conventional neoclassical pieces infused with traditional folk melodies. However, when his Symphony No. 1 (initiated in 1941) premiered in 1948, the new communist government labeled it "formalist" and banned his increasingly avant-garde works from public performance.
During this restrictive period, Lutosławski sustained himself by composing children's songs and film scores until the mid-1950s when the restrictions eased. He received his first government prize in 1955, shortly after creating the Concerto for Orchestra, inspired by folk themes.
Lutosławski considered his Funeral Music for string orchestra (1958) a pivotal moment in his artistic evolution. This 12-tone composition, dedicated to the memory of Hungarian composer Béla Bartók, marked a departure in style. Following this, he delved into experimentation, introducing aleatory operations combined with conventional effects in Venetian Games, crafted for the Venice Festival of 1961. Notably, in this piece, Lutosławski employed unconventional visual notation to guide performers through various improvisatory operations.
While Lutosławski gained renown for his orchestral compositions, he also contributed piano pieces, children's songs, choral works, and a string quartet (1964). His later works include the Concerto for Cello and Orchestra (1970), Chain 2: Dialogue for Violin and Orchestra (1985), Piano Concerto (1988), and Symphony No. 4 (1992).