Protocol Recordings has released a bundle of acapella versions of some of the label's most-loved tracks. The ten track package includes Nicky Romero's hit "Heartbeat" as well as his track "Lighthouse", Arno Cost's "1000 Suns", Paris Blohm's "Demons" and more from the Protocol roster of rising talent and established heavyweights. While the acapellas are perfect for easy listening on their own, they have unbridled potential for producers to create their own rendition of a familiar favourite or mix in a gorgeous vocal sample during an instrumental live set! Check out a teaser below!