VPRO's Cafe Sonore has sent in Shackle's track Zipper to Palma Ars Acustica. Zipper was also broadcasted on April 27 2013 during Cafe Sonore. This post is too late for that broadcast, and we weren't selected for the price, so I guess this post's only purpose is documentary. Still you're reading this, so if you're curious: Zipper can be be found on the Shackle Stick.