When experimental music festival Unsound made its first announcements earlier this year, it opted to omit some crucial information: its line-up. By way of explanation, organizers asked,”How do our expectations affect the value we place on music as an art form?” Now, with a start date of October 11 fast approaching, a substantive chunk of acts booked for this year has been revealed in one. The 2015 edition will showcase a number of high-profile pairings, including Birmingham techno veteran Surgeon with Gaga collaborator Lady Starlight, Shackleton and Japanese trio Nisennenmodai, and Rabit and Kuedo. Other highlights include The Black Madonna, Helena Hauff, Charles Cohen and Rabih Beaini, Holly Herndon, footwork originator RP Boo, and “new-age legend” Laraaji. More club-oriented offerings will come from Andy Stott, Zenker Brothers, Levon Vincent, Aurora Halal, Galcher Lustwerk, and Low Jack.

Still, as a press release notes, nearly half of the line-up remains under wraps, “establishing tension between the known and the unknown whilst playing with preconceptions we bring to the act of listening, especially within a festival context.” For full details, head here.