Gabriel Prokofiev's Nonclassical label and event series is marking its 10th anniversary with an invitation to remix one of four tracks by Tansy Davies, Mark Simpson, Gary Carpenter and Prokofiev. The competition is open to all and free to enter. The stems for all tracks can be downloaded via Soundcloud, and all remixes must only use the original sounds.
The winning entry will be released by Nonclassical, and showcased on a forthcoming UK tour. Deadline for entries is 21 August. More details here.