Amazon Music has compiled a playlist of exclusive covers and original songs dubbed Amazon Acoustics, and today (July 28), a third track has emerged. Listen to Deer Tick’s previously unheard “Grandfather Song” -- an outtake from the band’s 2013 full-length, Negativity -- below:

Amazon Acoustics is due out July 31 and will only be available for purchase and download on Amazon. In addition to the new Deer Tick tune, Amazon has previously shared the Districts’ cover of David Bowie’s “Ashes to Ashes” and Surfer Blood’s take on Outkast’s “Hey Ya,” both of which can be heard at the bottom of the page.

Of the playlist's more than 30 tracks, the Walkmen’s Hamilton Leithauser also contributes a cover of Beach House’s “Astronaut,” while his bandmate, Peter Matthew Bauer, has recorded his rendition of St. Vincent’s “Prince Johnny.” The playlist also boasts covers by the Griswolds, Joshua Radin and Jessie Baylin, plus original songs by Nick Lowe, Ron Sexsmith, Hey Marseilles and more.