For a while, back in the early ’70s, Alvin Fejerang had a good time as the drummer in a group named Beowulf, playing modern rock and dance music in clubs on Oahu such as the Infinity in the Sheraton Waikiki, the Blue Goose on University Avenue and other dance-friendly hotel nightclubs on neighboring islands.

There was a lot of talent in his group — Hemingway Jasmin, Creed Fernandez, John Rapoza and Kimo Cornwell, now a member of Hiroshima, were four of the other members — but eventually he found the club scene limiting.

“They were doing some writing, and obviously a lot of talented people came out of that group, but for me, because we were in the club scene, I wanted to do more. I wanted to get more into an original thing,” Fejerang said. And so he left the band he had helped start and went looking for another job.

In a week or two he found it — playing drums with Kalapana.

Fejerang was part of Kalapana’s second album, “Kalapana II,” and also part of an unforgettable chapter in local music history, when talented Hawaii musicians rose to prominence, creating a lasting legacy of original music and inventive interpretations of the era’s pop, soul, jazz and Hawaiian music.

He’ll be part of a reunion of some of the era’s most influential groups on Saturday, when Beowulf, Glass Candle, Greenwood, Honolulu and Tino & the Rhythm Klub will make music as part of the ’70s Nightclub Reunion Plus at the Ala Moana Hotel’s Hibiscus Ballroom.

Fejerang recorded with Kalapana, alongside founding membersMalani Bilyeu, Mackey Feary, D.J. Pratt and Kirk Thompson, as a studio sideman, and became a members of the group following Feary’s departure. Kalapana released two more albums, “Kalapana III” and “Many Classic Moments,” before the group lost touch with Hawaii.

Kalapana, with Fejerang, relocated to Southern California (where Cornwell also joined the band) and remained based there for several years. Fejerang left the group in the early 1980s. He had moved on to Oregon, where he was working full time as a graphic designer and Web designer, when Kalapana received the Hawai‘i Academy of Recording Arts Lifetime Achievement Award in 2011.

Fejerang came back to Hawaii for the presentation. It was the first time he had seen some of the other surviving members of Kalapana in 30 years.

“I did a couple of gigs with them after that,” he said, “when Garin (Poliahu) couldn’t play with them. That was a lot of fun.” Eventually he returned to Hawaii, where he’s currently working with several groups.

On Saturday, for the first time in 40 years, he’ll be playing a set with Beowulf. Fejerang says it’s also the first time since the band disbanded that the whole band has come back together.

“We’ve been doing about four days of rehearsal, putting in a lot of hours, so it should be sufficient,” he said.

The Beowulf reunion is one of the latest of the “never say never” events that has kept Robin Kimura, founder and producer-promoter of the ’70s Nightclub Reunion shows, presenting additional shows in the series.

Kimura’s concept from the beginning was to present only groups that had played in local nightclubs in the decade between the mid-’70s and early ’80s. He refused to pad the Reunion shows with remnants of old groups, “oldies acts” or pickup groups. If the surviving members weren’t willing to reunite for an evening, Kimura wouldn’t accept substitutes.

Some musicians took issue with Kimura’s insistence on working only with the original members of ’70s-era groups, but if the original members of a group were alive and still able to play their instruments, he expected them to make the effort.

Many of them did. Kimura’s ’70s Nightclub Reunion shows have included performances by Aura, Glass Candle, Natural High, Ashberry/Sage, New Experience, Asian Blend, Rock Candy, Phase VII and the Kasuals.

There were a couple of times when Kimura persuaded band members to set aside decades-old grievances. There were also times when someone from a band who wasn’t interested in reuniting dropped in “just to check it out” and was so warmly welcomed that he changed his mind about it.

There were times when Kimura thought he had presented every eligible group that was willing and able to perform — and then discovered he was wrong.

And so, this weekend’s ’70s Nightclub Reunion Plus show is presenting three eligible groups for the first time.

In addition to Beowulf, there’ll be the original members of Honolulu and also Tino & the Rhythm Klub. Those with keen eyes or good memories will note that Beowulf member Jasmin was a member of the Rhythm Klub as well.

Glass Candle, one of the biggest local Waikiki bands of the 1970s, is making a return visit.

Kimura’s band, Greenwood, one of the last full-time Waikiki nightclub bands of the era, will be opening the show because, as Kimura puts it, “Nobody wants to be the opening act.”