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Black musician Daryl Davis tells how a chance encounter led him to befriend Ku Klux Klan members and seek the source of racial hate. He argues that sitting down and talking with people can change them.

A score-following video of Iannis Xenakis's 1950s orchestral piece Metastasis, showing his graphic, mathematically derived notation as the music plays. It is a landmark of post-war modernist composition.