That 23-minute instrumental Dave Grohl recorded by himself will be at digital retailers and streaming services on August 10th.
It's part of a project called Play that includes a documentary directed by Grohl about setting up to record this song and the entire performance in the studio. The Foo Fighters mastermind played all seven instruments on the track. Whenever he made a mistake or thought he could do a better take, he'd start again at the beginning of the track. Check out a trailer of the documentary at Play.Roswellfilms.com
A vinyl version of the track will be out September 28th.