Bryce Dessner, one of the two twin brothers in the National, is the band member who studied music composition at Yale before going on to dour indie rock stardom. A few years ago, he arranged a new piece called “Aheym” for the Kronos Quartet, the long-running modern-classical institution, when they were getting ready for a show at Brooklyn’s Prospect Park bandshell. Since then, the group has performed the composition many times, and now they’re getting ready to release a full album together. The title track absolutely nothing like the National — or like indie rock in general — but it’s a chance to hear where Dessner’s passions push him, even beyond what he does in his relatively adventurous side project Clogs. Watch Matthew Ritchie’s video for the piece below.

Aheym is out 11/5 on Anti-.