Frank Ocean still has a lot more in the vault from the Blonde and Endless sessions. So said Billy “Spaceman” Patterson, the veteran session guitarist who worked on both albums, in a new interview with Pitchfork. “There’s a lot of stuff that we recorded that I still haven’t heard yet,” said Spaceman, who has performed or recorded with everyone from Miles Davis, James Brown, and Stevie Wonder to Aaliyah, Notorious B.I.G., and Brandy. “We recorded a lot of music.”

“We’d go in the studio for a long time,” Spaceman told Pitchfork. “Our sessions are like, man, we had like 14-hour, 15-, 16-hour sessions. So there’s a whole lot of music that we wind up covering ... we’re creating continually. So something may happen and [Frank might] say, ‘Oh, that’s nice, let’s try this here.’”

Spaceman said he played acoustic and electric guitar in the sessions along with guitar synthesizer. Endless credits Spaceman for guitar on “In Here Somewhere,” “Rushes,” and “Deathwish (ASR).” He said he’s also on Endless tracks “Slide on Me” and “U-N-I-T-Y.” On Blonde, Spaceman recalls hearing his contributions on “Nights,” “Skyline To,” “Seigfreid,” “Ivy,” “Pink & White,” and possibly “Pretty Sweet” and “Close to You.” (Detailed song-by-song credits from Blonde have yet to be officially released, though some songwriting credits surfaced last week in the database for ASCAP, an organization that collects royalties.)

Spaceman recalled, “when [Frank] dropped Endless, I thought that was it. So then it was like, ‘OK.’ And then, boom, a couple of days later, Blonde. ‘Oh, those songs! I remember them.’”

Read more from our interview with Spaceman, “Who the Hell Is Spaceman? A Cosmic Convo with Frank Ocean’s Mystery Guitarist,” over on the Pitch.

Also check out Pitchfork’s interviews with fellow Ocean collaborators Buddy Ross, SebastiAn, Wolfgang Tillmans, and Tom Sachs, and revisit “Frank Ocean’s Blonde: 6 Things to Know.”