For the fourth year in a row, the Columbus Music Co-op is throwing a post-ComFest parking lot concert that rivals the venerable fest's Offramp Stage as a showcase for the city's punk, metal and (especially) indie rock scene.

For the fourth year in a row, the Columbus Music Co-op is throwing a post-ComFest parking lot concert that rivals the venerable fest's Offramp Stage as a showcase for the city's punk, metal and (especially) indie rock scene.

Here Comes Your Weekend Parking Lot Blowout IV will feature a broad slate of bands, from the whispery coo of Winter Makes Sailors to the thunderous stampede of Struck by Lightning, all playing for free to all ages in the parking lot beside Surly Girl Saloon.

All food and drink sales go directly to the CMC, a local nonprofit that supports local musicians through grants, networking, education and, most famously, the Columbus Musicians Assistance Program. The emergency medical fund paid $7,500 in health-care costs for uninsured musicians during its pilot year.

The Co-op is in the midst of revamping its website to add networking resources such as contacts in the recording and legal fields, and co-founders Erin Moore and Jessica Faller have been drafted to help coordinate the music at other festivals like Independents Day and Urban Scrawl.

"A lot of the things we've been talking about for several years are coming to fruition," Moore said during an interview last week. "Our 501c3 app is being worked on as we speak."

Here's a quick look at Saturday's full slate of music:

3 p.m. Apocalypso

Caribbean steel plus heavy metal equals one awesome aural anomaly.

3:45 p.m. Total Foxx

The latest project from Bigfoot duo David and Melanie Holm will feature musician-about-town Derek DiCenzo, one of the busiest (and best) hired guns in Columbus.

4:30 p.m. The American Jobs

Come down from the afternoon's initial adrenaline rush with brooding baritone balladry from an experimental Youngstown-Columbus crew that bears more than a little sonic resemblance to Crash Test Dummies.

5:15 p.m. Winter Makes Sailors

Sean Gardner's somber solo project, usually bolstered by loops and feedback, will come to life on the asphalt courtesy of a full band.

6:00 p.m. Chuck and Lisa from Wussy

As the CMC attempts to foster similar programs around Ohio, they welcome their first non-Columbus act, the pair behind Cincinnati folk-rock powerhouse Wussy.

6:45 p.m. Rosehips

Cassie Lewis hits the glory notes like few voices in Columbus rock. Her band obliges by unspooling tightly wound guitar anthems that share the spirit, if not the sound, of Sleater-Kinney's motto, "Show Us Your Riffs."

7:30 p.m. Deerhead

Take a trip to the dark side of Southern rock with players whose appreciation for their genre runs far too deep for irony.

8:15 p.m. Moviola

The venerable jacks-of-all-trades will step away from work on their Dead Knowledge follow-up to perform as an expanded eight-man ensemble. Get excited.

9 p.m. Guinea Worms

Prepare for more bizarre wonderment from one of the city's most unusual punk bands. Also, when perusing the local secondhand shops, be on the lookout for equipment recently stolen from frontman Will Foster: a Sunn Spectrum 1 amp head and an Ampeg VB4.

9:45 p.m. Cheater Slicks

The Slicks have been kicking out gnarled, nasty sounds for more than two decades, yet they continue to surprise.

10:30 p.m. Struck by Lightning

As usual, the blowout ends with metal, this time courtesy of ex-Mouth of the Architect mastermind Greg Lahm's latest band, Struck by Lightning.

Click to The A-List at ColumbusAlive.com for a complete concert calendar