World Cafe on KCCU-HD2

Alt-J (stylized as ∆) may be the most successful new British band of 2012 — a favorite to win the Mercury Music Prize in November and a Top 20 chart phenomenon in the U.K. The group, which chose its name from the mathematical symbol for change, made a splash with its debut album, An Awesome Wave, which came out in September. The record mixes upbeat indie rock and brooding synths with vocals that sound like no one else's in music today.

The Great American Canyon Band is a Baltimore indie-folk act featuring husband-and-wife duo Paul and Krystal Jean Masson. The pair's first single, "Tumbleweed," is a lovely, dreamy piece of countrified rock, destined for road trips. The rest of the self-titled EP came out in May, and an additional track, "Young Lady," was released on Sept. 5; it's available for download here.

Grizzly Bear began in 2004 as a bedroom project for Ed Droste. By 2006, Droste had a full band alongside him: Daniel Rossen, Christopher Bear and Chris Taylor. They released Yellow House the same year, but it was 2009's Veckatimest that propelled the group to worldwide fame.

Detroit singer-songwriter Rodriguez has finally found the fame that had eluded him for more than four decades. In the early '70s, he achieved cult status in South Africa, while at home, he remained virtually unknown. His public obscurity sparked rumors that he'd killed himself, but while he was alive and well, he'd retreated from music, earning a philosophy degree while working as a demolition man.

As part of World Cafe's Latin Roots series, Felix Contreras from NPR's Alt.Latino explores the ranchera. We'll hear old and new examples of this Mexican narrative form.