In this episode: One! Two! Three! Four! Everybody loves a good toe-tapper. But have you ever wondered why we humans move to music? And why some unfortunate people can’t seem to find the beat? Columbia University music professor Mariusz Kozak tells us what he’s learned about why we physically respond to sound.
Then: The globetrotting South African choir Ladysmith Black Mambazo is best known for its work on Paul Simon's Graceland. The group, which now includes the founder’s grandson, performs songs from its beautiful new album in the Soundcheck studio.