A new box set is on the way, and this one features 39 tracks recorded by Hendrix at Electric Lady Studios in New York in the months before his death in September 1970. All but one of the tracks on recorded with drummer Mitch Mitchell and bassist Billy Cox, who'd replaced Noel Redding the previous year – are unreleased (full tracklist below). A video for the first track taken from the album, has been released.

The box set is timed to coincide with the release of the documentary of the same name. will premiere on August 9 at Quad Cinema in Manhattan, New York, and is followed by a . The film tells the story of Hendrix's iconic studio, a state-of-the-art facility built on the site of a dilapidated Manhattan nightclub.

“The construction of Electric Lady [Studios] was a nightmare,” says Hendrx's producer . “We were always running out of money. Poor Jimi had to go back out on the road, make some money, come back, then we could pay the crew.

“Late in ’69 we just hit a wall financially and the place just shut down. “He borrows against his future royalties, and we’re off to the races. [Jimi] would say to me, ‘Hey man, I want some of that purple on the wall, and green over there!’ We would start laughing about it.

It was fun. We could make an atmosphere that he felt comfortable in.” The box set will be released on September 13 on five vinyl LPs or three CDs, while a Blu-ray disc (included in both versions) features newly mixed 5.

1 audio versions of 20 previously r.