Bon Iver’s frontman Justin Vernon and the National’s Aaron Dessner are collaborating on more than just their upcoming curated music festival, this month’s Eaux Claires; the two men are also teaming up to organize a new not-for-profit two-day music event in Berlin.

Featuring 80 artists, including Alt-J, Spank Rock, Woodkid and Damien Rice, the event is “about new material, collaborations, unique arrangements and dissolving borders,” according to its site.

All artists are contributing free of fees, there are no sponsors or commercial interests, and the ticket price of 80 euros (or $89 in USD) reflects production costs. Prior to the event, “all the artists will spend a week together…in Berlin, working, rehearsing and trying new things in the spaces where the shows will take place.”

The still-nameless event goes down at Funkhaus, the historical radio recording home of the German Democratic Republic, on October 1 and 2. Team work, dream work FTW.

Watch participating band Alt-J perform “Warm Foothills” for REVOLT.