The strings' music of Witold Lutoslawski is still dynamic, eloquent and opened to musical questions that the 20th century suggested.
Here are the astonishing "Preludes and Fugue for 13 Solo Strings" (composed in 1972)
played by the Warsaw National Philharmonic Chamber Orchestra
conducted by Witold Lutoslawski himself
recorded at the Warsaw Autumn Festival in 1973
& a conversation in between Witold Lutoslawski and Krzysztof Zanussi, coproduction of the BBC : HERE