Acoustic/folk duo Greylag make the kind of raw music that will have you feeling like you're being personally serenaded with each spin. Their new song, "Tiger," is one of those unconventionally beautiful numbers, taking cues from quirky harmonies, blues-meets-folk acoustic instrumentation, and dreamy vocals. It's at once weightless in sound and jagged in delivery, but it's sure to leave you wrapped up in a spaced-out bliss. Grab it for free for a limited time, and catch them on tour with Augustana this Spring.