Yeasayer are a bunch of guys who make music with instruments and their mouths. They have released an album, which collects together some of these recordings and now they're about to release another one. In order to generate some excitement surrounding this release, the band have decided to pick one song from the bunch and let you, the public, download it for free. Their hope is that once you've heard the song you will think, "that was jolly nice, I might purchase the album once it's released".

It helps that 'Ambling Alp' is proper bangin' all up in our collective grills. Ecouté:

You hear some Animal Collective in there? We do too. But it's a genuine leap forward for a band who previously seemed intent on tying themselves in knots in order to hide a catchy melody. We particularly enjoyed the last 30 seconds, where it sounds like someone's having a spasm on the keyboard.

The album, Odd Blood, is out in February 2010.