Witold Lutoslawski (1913-94) was a major Polish composer who spent much of his life dodging Nazis and Communists. Not surprisingly, he backed the Solidarity movement and received one of Poland's highest honors before his death. The second "L" in his last name has a slash through it, not reproducible with FR's current software, and it's pronounced like an English "W." The Polish "W"s in his name are to be pronounced like English "V"s. (VIT-old lu-to-SWAAV-skee)
Every composer worth his salt wrote variations on Paganini's 24th Caprice, and Witold wrote his set in the modern idiom of dissonance. It's short and a lot of fun.