Buzz Osborne has spent more than 30 years making music with a band that never really fit in with what was going on in music.

Buzz Osborne has spent more than 30 years making music with a band that never really fit in with what was going on in music.

"I don't feel like we're part of 'the scene.'" said the Melvins' frontman in a recent phone interview. "We're lumped in with a lot of that stuff and it's always irritated me. I never signed up for that. I never joined that club. I never volunteered for that."

And his feelings about the music industry align with his larger philosophy. "You show me a club or a protest and I won't be there. I'm a Groucho Marxist," Osborne said. "I don't want to belong to any club that will have me as a member."

Osborne continues to blaze his own weird trail with three decades of the crushingly heavy goodness that is Melvins - call it stoner rock or sludge metal or what have you - and the band shows no sign of slowing. The band releases new music pretty much every year (two albums in 2016) and continues to tour relentlessly. In 2012, the musicians hit all 50 states, plus D.C., on a 51-day tour.

"When you couple [the recording] with all the live touring, yeah, it's an incredible amount of work. More than most," said Osborne. "At least as much as anyone else and more than most. More than anybody else, probably."

Osborne and longtime Melvins drummer Dale Crover roll into A&R Bar on Monday, Aug. 22, joined by bassist Steve McDonald (Redd Kross, Off!), who was one of a rotation of players on the band's latest album, Basses Loaded, which celebrates the last decade of Melvins collaborators with no fewer than five different bass players.

Other contributors include Jeff Pinkus of Butthole Surfers ("Very strange guy, very strange player, really fun," Osborne said) and former member Trevor Dunn (Mr. Bungle, Tomahawk), who joined for the 51-day tour. Crover also took over bass duties for a few tracks when original Melvins drummer Mike Dillard stepped in to help recreate the group's 1983 lineup. "That's as close as we'll get to the original version of the band," Osborne said.

And then there's the track "Maybe I'm Amused," which features Krist Novoselic of Nirvana fame. Melvins have, of course, long been cited as an early influence on Nirvana, but this collaboration came together by accident, according to Osborne.

"[Novoselic] called me and Dale and said that Dave Grohl had this cockamamie idea about us playing with them at the 20th anniversary of Nevermind," Osborne said. "And I was, like, 'OK, that seems weird.' I was suspicious, but I went along … Remember, this is all Dave's idea. Not my idea. There's no fucking way I would have even suggested something that stupid."

Plans were formed to meet up in a rehearsal space in Los Angeles. "Then Krist comes down there and me and Dale and him are at the practice place, and then Dave just never shows up. We sit there for a couple of days, and he never shows up," Osborne said. "So we go, 'Let's just try recording something.' … That ended up being the song on the record."

"If we had tried to go through the proper channels and have [Novoselic] do it, it probably never would have happened," Osbourne continued. "Here's Dave Grohl, who's beyond reproach, Mr. Rock 'N' Roll Nice Guy ... that's how he treats people that are supposed to be friends of his, you know?"

The band also recently contributed a song to the Adult Swim cartoon "Uncle Grandpa" and is the subject of a documentary called "The Colossus of Destiny: A Melvins Tale" that's now making stops around the country.

And three decades in music haven't done much to change Osborne's outlook on the state of rock 'n' roll.

"I don't feel different than I ever did. Some good bands, mostly bad. That's the way it's always been," Osborne said. "There's always a few good ones, and you just hope and pray for those. And that's good enough."