CLEVELAND, Ohio – Claudio Sanchez pretty much lives that whole “write what you know’’ thing.

Which is kind of odd, considering the rhythm guitarist, lead singer and principal songwriter for the prog-rock group Coheed and Cambria writes concept albums that reflect life in space and science fiction.

“Coheed and Cambria [Kilgannon] are loosely based on my parents,’’ said Sanchez of the hero and heroine in his comic-book series, “The Amory Wars.” Makes sense, as “their” kids include one named Claudio. “All the characters have some loose connection to somebody very real.’’

That includes the band’s newest album, “Vaxis I – The Unheavenly Creatures,’’ which marks his return to the Amory Wars universe he created and set aside for 2015’s “The Color Before the Sun,’’ his first non-concept LP since forming the band in 1995.

“This time around, ‘Vaxis’ has a lot to do with a new life for our son, Atlas,’’ said Sanchez. “To me, I see a lot of us [him and his wife, Chondra Echert, herself a respected comic-book writer] there, navigating through parenthood and making it a bit more fantastic.

Though not yet 5, young Atlas already played a dual role in his father’s music career. The new album, which came out in October 2018, has a song called “Old Flames’’ that carries the Atlas stamp of approval.

As Sanchez was working on the song, writing on the piano rather than the guitar he usually uses, it piqued his son’s interest.

“He was so enamored with the song,’’ said Sanchez, whose band stops at the Agora on Tuesday, Feb. 26. “I only did three rounds of the song, and I noticed he was already singing it. I was just creating the melodies and he picked up on it.’’

Maybe someday, Atlas will go into the family business . . . at least that’s what Sanchez is hoping.

For now, it’s Dad’s gig, combining music and sci-fi. But he doesn’t see it as that much different than what he did as a kid himself, Sanchez said.

“Any time I listen to music, I have this visual in my head,’’ said Sanchez. “I’d be listening to music and stuck in these situations where the sound would help me visualize something else I was interested. in’’

It actually began when he was a child, said Sanchez, who is now 40.

“I could be in a boring car ride, and music sparked my imagination in a way that was just as simple as incorporating the sound I was listening to,’’ he said.

As for the sci-fi aspect, that’s part of his childhood, too.

“I grew up on He-Man and situations that happened in the landscape of Eternia [the character’s home], plus ‘Star Wars,’ ’’ Sanchez said.

“It’s funny that as you become an adult, you hear the idea of creative play, and it really IS important,’’ he said. “It’s what made me who I am now, with me writing comics books and stories. It’s a glorified version of me playing with toys.’’

Play or not, Sanchez knows pretty well how the story is going to play out down the road.

“The ending is the sort of thing that comes first, so I have a basically good idea of what’s happening from ‘Parts II to V,’ ’’ he said. Though there’s no official timetable, he’s had a history of putting out a new album every three years or so.

“I haven’t even started writing any music for II,’’ he said. “I wanted to allow time for the music to inspire the next movement. For me, I want the inspiration to be something pure and not forced.’’

And it’ll be a lot more collaborative than in the past, too.

“We’re considering going into the studio with nothing and seeing if the band can conjure some things up,’’ he said.

That’s a key part of the union that is Coheed and Cambria, which right now includes Sanchez, along with lead guitarist Travis Stever, drummer Josh Eppard and bassist Zach Cooper.

“I think all the ups and downs that we’ve been through helps strengthen the friendship that is the band,’’ Sanchez said. “There’s been a lot of member changes, and guys have left and come back.

“It’s only made us stronger and more committed to what we do,’’ he said. “We still have turmoil that happens now, but the turmoil [stems from] the fact that we care [about each other].’’

PREVIEW

Coheed and Cambria

When: 7:30 p.m. Tuesday, Feb. 26.

Where: Agora Theatre, 5000 Euclid Ave., Cleveland.

Opener: Maps & Atlases.

Tickets: $30 to $55, plus fees, at the box office, at agoracleveland.com and ticketweb.com, and by phone at 216-881-2221.