Mastodon guitarist Bill Kelliher gave an update on the band's upcoming studio effort, confirming a more mature approach along with some "crazy mathy stuff."
Chatting with Soundwave TV, Bill noted that the group had significantly grown since the early days, resulting in better recording conditions and hopefully better music. "Now we have, I don't wanna say it's like, a polished record, because that usually implies it's something really overproduced and I don't think it is."
Adding that producer Nick Raskulinecz (Foo Fighters, QOTSA, Deftones, Rush) went for a more raw vibe, the guitarist noted, "It just sound more polished and professional because we're grown-ups, I'm a grown-up man now [chuckles]."
Discussing the new material's sound, Kelliher said, "We really worked super hard at kind of keeping it simple, [but] there is some crazy mathy kind of stuff going on, intricateness." Focusing on some of the surprising elements, Bill brought up the matter of a few "happy" riffs finding their way on the record.
"I was playing the riff for [drummer Brann Dailor] and he was like, 'It sounds really happy. Not it a bad way, but it just sounds really happy.' He was like, 'Are we happy now?' [laughs] I was like, 'I don't know, I guess I was happy when I wrote this riff.'"