On March 6, 1963, John Coltrane and his Classic Quartet - McCoy Tyner, Jimmy Garrison, and Elvin Jones - recorded an entire studio album at the legendary Van Gelder Studios. This music, which features unheard originals, will finally be released 55 years later. This is, in short, the holy grail of jazz.

Both Directions at Once: The Lost Album will be released on June 29 on Impulse! Records, Coltrane's final and most creative label home.

The first week of March in 1963 was busy for John Coltrane. He was in the midst of a two-week run at Birdland and was gearing up to record the famed John Coltrane and Johnny Hartman album, which he did on March 7. But there was a session the day before that was the stuff of legend, until now.

On Wednesday, March 6, Coltrane and the quartet went to Van Gelder Studios in Englewood, NJ and cut a complete album's worth of material, including several original compositions that were never recorded elsewhere.  They spent the day committing these to tape, taking time with some, rehearsing them two, three times, playing them in different ways and in different configurations.