Adams Avenue Street Fair, featuring Bardo, Chris Duarte Group, Sue Palmer & Her Motel Swing Orchestra, Wild Wild Wets, Masta Ace, Los Fabulocos, Euphoria Brass Band, Fred Heath & The Slidewinders, and dozens more

The numbers add up very well for this weekend’s 44th annual Adams Avenue Street Fair.

It will feature 75 bands and solo artists performing on six stages along a 10-block stretch of Adams Avenue in Normal Heights. The most notable number, though, is zero, which is the unbeatable price of admission for almost all of this entirely free music marathon (beer garden admission being the lone exception).

With a lineup that features a relatively broad array of performers and genres, the fair should offer something that appeals to most listeners. Options range from Chicano Batman front man Bardo, blues-rocking guitarist Chris Duarte and San Diego boogie-woogie piano queen Sue Palmer & Her Motel Swing Orchestra to the roots-rocking East L.A. band Los Fabulocos, and such homegrown San Diego favorites as Sara Petite, Wild Wild Wets, Euphoria Brass Band, Boostive, Grampadrew, miniaturized, Gayle Skidmore, Buzz Campbell and Rey Wolf.

The lineup also features what is being billed as the farewell performance by San Diego’s 25-year-old Rookie Card, a band whose more overtly baseball-happy songs include “All I Want Is Padres Baseball,” “7th Track Stretch” and “The Murph.”

Rookie Card is led by Adam Gimbel, who has also masterminded the faux senior citizen Weezer tribute band Geezer, Cover Me Badd, Blasphemous Guitars and Rabbi Gimbel’s Chanukahtime Revue/The Jews Explosion. For good measure, Gimbel also has led Wookie Card, a “Star Wars” attired Rookie Card offshoot group.

Will Gimbel and Rookie Card trot out such favorites as “Your Life Is A Joke,” “Hell Toupee,” “Escalator To Heaven,” “Mazzy Starship” and the leap-year-championing “2/29” for their 11:30 a.m. Saturday farewell show on the Casbah Stage at the Adams Avenue Street Fair? Will they perform songs from their farewell album, “Us and Them,” which features the Adams Avenue-inspired song “My Avenue?

Here’s hoping.

10 a.m. to 10 p.m. Saturday, Sept. 19, and 10 a.m. to 6 p.m. Sunday, Sept. 20. On six stages on a 10-block stretch of Adams Avenue, between Bancroft Steet and 38th Street. Free, except for the three 21-andup beer gardens, which cost $21. (619) 282-7329 or adamsavenuebusiness.com/adams-avenue-street-fair/

Mike Keneally & Beer For Dolphins, with Travis Larson

Even for someone with an almost nonstop work schedule, guitar and keyboard wizard Mike Keneally has been unusually busy of late.

He spent a good chunk of June in Geneva, where he was the guest soloist in an elaborate, multi-performance Swiss orchestral production of the late Frank Zappa’s “200 Motels.” Keneally, who was a key member of former San Diegan Zappa’s final touring band in the 1980s, then hosted three Zappa-related events in July at the nearby Montreux Jazz Festival before returning to the U.S. for a tour with the new jazz-fusion band P f f T.

In August, Keneally reunited with several other former Zappa alums for four Los Angeles shows as Banned From Utopia. The same group will do a nine-country tour of Europe this fall.

But before he departs for the opening date in Prague, former San Diegan Keneally is doing a seven-date California tour with Beer For Dolphins, a band he has led off and on for several decades.

Keneally counts XTC leader Andy Partridge and guitar stars Joe Satriani and Steve Vai among his most illustrious collaborators and admirers. With Beer For Dolphins, he is able to follow his muse anywhere and everywhere. For fans of wildly adventurous rock and virtuoso musicianship, his Beer gig here Saturday should be a heady affair. And he’ll be back Nov. 14 at the same San Marcos venue for a gig with P f f T.

7 p.m. Saturday, Sept. 19. The Bornemann Theater, TERI Campus of Life, 555 Deer Springs Road, San Marcos. $25-$45. humanitix.com/mikek-beer-for-dolphins

Brandi Carlile, with CMAT

As memorable as Brandi Carlile’s collaborations with Joni Mitchell, Elton John, Maren Morris and Justin Vernon have been, it is on her own that she shines brightest — thanks to her luminous voice, deeply felt songs and steadfast conviction that music is invaluable in helping to affect positive change.

Charismatic Irish country-pop dynamo CMAT, who will open the show, is an equally committed force for powerful music and female empowerment. Their pairing will likely one one of the bet double bills of the year here.

6 p.m. Tuesday, Sept. 22. The Shell, 222 Marina Park Way, downtown. $115.95-$622.75 (Platinum VIP package). ticketmaster.com

Vieux Farka Toure, with Gitkin

Hailed as “the Hendrix of the Sahara,” Malian guitar star Vieux Farka Toure plays with equal fire and finesse.

His simultaneously earthy and exotic music illustrates that West African kora music and American Delta blues are indelibly connected. He is continuing to salute and extend the traditions that his father, the late Ali Farka Toure, brought to international audiences several decades ago, albeit with a psychedelic tinge his esteemed father likely never imagined possible.

7 p.m. Thursday, Sept. 24. UC San Diego’s Epstein Family Amphitheater, 9500 Gilman Drive, La Jolla. $35-$55. artpower.ucsd.edu