Krakow’s ever-stimulating Unsound Festival has announced its first acts for 2013.

Following last year’s investigation into ‘The End’, 2013’s umbrella theme has been confirmed as ‘Interference’ – a word encompassing the physics of sound, the interlocking mesh of digital signals at play in advanced society, and “the meaning of “underground” in today’s networked, commodified and data-driven world.”

Ambient music hero Robert Rich will be resurrecting his infamous 1980s “sleep concerts” concept, where lengthy ambient suites were played to sleeping or dozing audiences in San Francisco. Rich will perform one of these shows-cum-installations for the first time since 1996. Porter Ricks, responsible for the dub techno touchstone Biokinetics, will perform their first live show in many years, a major coup for the festival. Dylan Carlson’s almighty Earth will be showcasing their sludgy brand of country-inflected doom – somewhat unbelievably, the show will be their first ever performance on Polish territory.

Festival regular Monolake will present a new show, Lumière. Inspired by recent installation projects, the laser-assisted show promises “intense grids of bass and spectral noises.” Lovers Rock acolytes turned beefy shoe gazers King Midas Sound will also be present and correct, as will Mats Gustafsson’s revered Fire! combo and footwork nonesuch RP Boo. Tropic Of Cancer will preview their forthcoming Blackest Ever Black LP, Karenn will perform their kit-heavy live show, Stellar OM Source will up the acid count, and DJ Qu is also on board. Further additions include Stefan Wesolowsi, Pharmakon and Helena Hauff.

Unsound will run from October 13-20 in Krakow – head here for tickets and further information. More names are, of course, yet to be announced.