This new business in downtown Patchogue is gonna rock.

And we’re not editorializing.

Blue Point Brewing Co. founder Peter Cotter has teamed with longtime Patchogue musician Kyle Fitzpatrick to bring a Rock Underground location to the village.

The new music school — the fifth Long Island location — is being built within the former Masonic Hall at 15 Oak Street, just east of the intersection with North Ocean Avenue.

The goal is to open within weeks.

“This is a music school that not only teaches kids to understand their instruments, but to perform live,” said Fitzpatrick, a prolific performer himself and the guitarist and singer with the horn-driven jam band Funkin’ A.

The space is currently being outfitted with a recording studio, through which parents can at times watch from the lobby. There’s also eight lesson rooms under construction that will ring the 4,000-square foot space.

Each room will be designated for certain instruments, and each will be decorated with colors in the order of the color wheel, with tributes to big names in music. (Think Green Day or Jimi Hendrix’s Purple Haze.)

The center portion will play host to a lounge where young people can hang out, play pinball, make friends — and just be kids.

“We’re gonna have a sign that says parents with a circle and a slash,” said Cotter. “It’s all for the kids.”

“Yeah,” added Fitzpatrick. “No parents allowed.”

The idea conceptualized in April. Work started in September.

Beyond lessons, Rock Underground will be putting on seasonal shows for all ages at places like 89 North Music Hall and other local venues. The seasons last about three months.

Weekly improv classes are being planned for jazz and blues instruments. For those not interested in instruments, Rock Underground can train people on the songwriting and recording/production side of the business.

There’s even going to be a glee club.

Also, there will be adult classes offered during later-night hours once as week.

“It’s going to be a very fun place,” said Fitzpatrick. “We want to add to this community by building our own community right here.”

Click here to follow Rock Underground Patchogue on Facebook.

Check back at GreaterPatchogue for updates.

Photo: Kyle Fitzpatrick and Peter Cotter in the basement below the future Rock Underground Patchogue on Oak Street. (Michael White)