Several weeks ago, Los Lobos member David Hidalgo revealed some information about Bob Dylan‘s upcoming 35th studio album. Now we have more insider details about the songs and a possible release date.

Previously, Hidalgo said he’d just wrapped recording sessions with the music legend at Jackson Browne‘s studio in Los Angeles, and that Dylan was especially fascinated by the Mexican instruments lying around the studio. “He’d say, ‘Wow, what’s that?’ He liked the sound. So we’d get it in there,” Hidalgo said.

Whether or not the new record has a South-of-the-Border flavor remains to be seen, but Dylan fan publication ISIS now reports that although “listening sessions for Sony staff in New York and London have already taken place,” those in attendance were sworn to secrecy about what they heard.

That said, ISIS has inside info indicating the album will have 10 tracks with just over an hour of music. And you’d better have a comfortable chair when you check it out, because there’s apparently a 14-minute Titanic-themed song and another ditty that runs a full nine minutes.

The still-untitled record is slated for a possible September drop, which ISIS points out is before the Grammy Award deadline and also gets the album out there in time for the holiday shopping season.

We’re not sure why Dylan (who just had a birthday, by the way) would compose a song about the Titanic, let alone one that seems longer than the ocean liner’s doomed voyage. But as with all things Dylan, part of the man’s appeal is his mystery — so we’ll all just have to wait to find out.