The tracks are of the artists LUX and Shields records that came out last year. Jaar is a Chilean-American artist who has been releasing music since he was 17. He has one record, Space Is Only Noise, out.
Find out more about Grizzly Bear (and their current tour) at grizzly-bear.net.
For more on Brian Eno and Lux head to brian-eno.net/lux.