Anyone who needs a primer on Orgone would do well to listen to the band’s upcoming eighth studio album.

“Undercover Mixtape,” officially out Feb. 2, features 13 old-school funk, soul and R&B covers from the likes of Aretha Franklin, The Meters, Otis Redding, Funkadelic and more, re-imagined (or more often than not, faithfully re-created) in Orgone’s horn-fueled, jam-heavy style. Many of the songs have been with the band since guitarist Sergio Rios and keyboardist Dan Hastie first began jamming together in Los Angeles in the late ’90s. The album could very well have been the band’s first recording; as Rios himself put it to GO! Magazine recently, “It’s also a great overview of what defines the influences and heart of the band.”

“A lot of those are songs we’ve performed live before; they’ve been in our set lists, so it’s kind of like, oh, we put enough of a spin on it,” Rios said from Los Angeles. The band kicks off a West Coast tour Friday, and returns to the Domino Room on Tuesday. “We find people requesting them all the time, like, ‘When’s that gonna be on a record?’ And (we) always kind of thought like, ‘Well, it’s a cover; we’re not gonna put that (on a record).’ We usually have maybe one cover (per record).”

The octet’s throwback sound is a natural fit in today’s music world, with acts such as Sharon Jones & The Dap Kings, L.A.’s Breakestra, New York Afrobeat band Antibalas, Orgone and others fueling a mainstream revival in the last decade. But when Orgone started — as primarily an instrumental band that would back rappers and other singers — audiences often wouldn’t be aware the band was playing a cover song when it would launch into material such as The Meters’ “Look-A Py Py” (the third track on “Undercover Mixtape”), for example.

“Only like some friends who hung around with us who listened to it (recognized it),” Rios said. “When we really put the band together, our manifest was, oh, we’re gonna bring this music that people just don’t really know. That’s the way it felt for us anyways, because we’d been so dedicated to learning and listening and just loving this stuff. … There wasn’t really — nobody (was) really going for that gritty (sound) and older tones and stuff. That was definitely part of it. We wanted to play this music out and play it like it sounds on the record.”

Nearly 20 years in, the band — which takes its moniker from the pseudo-scientific concept of a universal life force — is at the forefront of the West Coast’s funk and jam-band touring circuits.

It has toured with Sharon Jones & The Dap Kings (which Rios credits as a key group in the funk/soul revival) and backed Alicia Keys, CeeLo Green, Macy Gray and Jennifer Hudson, among others.

The band — also featuring vocalist Adryon de León, drummer Sam Halterman, bassist Dale Jennings, trombonist Darren Cardoza, percussionist Will Phillips and guest trumpeter (and Portlander) Paul Chandler — last played Bend in February 2017 with fellow throwback soul-funksters Monophonics (that group’s vocalist/keyboardist Kelly Finnigan also features on “Undercover Mixtape”). Orgone has been a regular visitor since at least 2010, frequently with local promoter Gabe Johnson and Parallel 44 Presents.

“One of my best memories was maybe the first or second time we ever played in Bend, and it was at the Domino Room, but in the upstairs (Annex),” Rios said. “I think they were still building it, and they just went ahead and had a show. I remember the stage wasn’t really completed. I think it was during the summer, too, and it just went off. It was one of those things where you don’t expect it; I think it was a Tuesday night or something, and we just had a hardcore crowd.”

Along with the classic cuts from “Undercover Mixtape,” fans can expect plenty of new, original material in Bend, as well. The band has kept up a steady stream of single releases since 2015’s “Beyond the Sun,” the first album to feature de León.

This month’s “Big Day” backed with “Hound Dogs” was released on 45 rpm vinyl, and follows “I Sold My Heart to the Junkman,” a collaboration with Cyril Neville that was featured on NPR in April.

That song, an R&B standard that has been covered by Etta Jones and Bette Midler, was truncated to fit on a 45. The complete version could end up on another upcoming, mostly original album. That record should be finished after the current tour and could be released by fall, Rios said. But other than that, the singles probably won’t be repeated on albums.

“The way that works now, it’s definitely better to keep (releasing music) and not wait too long for some kind of tent-pole album,” Rios said. “… We’re always working in the studio (Killion Sound, the band’s headquarters), and I’ve always got a lot of productions in various states of completion.”