Mastodon are currently mixing their eighth studio album. In an interview with Talking Metal podcast, guitarist Bill Kelliher says that the LP is slated for a fall release. Kelliher said that the LP is the band's "biggest-sounding" album to date.
He explained that Tool producer Dave Bottrill is currently mixing remotely and sending the files to Mastodon for feedback via Dropbox. He said, “[David will] mix a song every couple of days, and he’ll send it over to us in Dropbox. And we all listen to it. I go listen to it in the car, I listen to it in my studio, I listen to it on all kinds of different speakers to make sure that all the things and little details that I wanna hear are there."
He continued, "And we just kind of give him pointers and notes, like, ‘Hey, the snare needs a little more treble in this part,’ or, ‘I wanna hear the kick drum more right here,’ ‘Turn down the vocals in this chorus.’ … He gets all the notes, and then he turns it around an hour later.”