Mower:?Friday, Aug. 7 San Diego has a thriving,underground hard-rock scene that includes notables such as Cattle Decapitation, As I Lay Dying and Benidictum. The band making the biggest impact at the moment is Mower. As evident on Mower’s new album, Make It A Double, subtlety is not this band’s forte. Amps are set to ten; lyrics are shouted; and the music is played at a blistering pace, but the band still manages to hang on to melody. Setting the band apart, the quintet features two lead vocalists, Brian Sheerin, who sports a moody growl, and Dominic Moscatello, whose high register gives the band a unique, rough-edged harmony. If you like rock ’n’ roll loud and in your face, this is the perfect concert to get your adrenaline pumping. Cane’s Bar & Grill, 8 p.m. 3105 Ocean Front Walk. $20. 21 and up. Blue October: Friday, Aug. 7 It’s hard enough to be signed to a major label once, but to be signed to the same label twice is almost unheard of. Such is the fate of Houston-based rock quartet, Blue October. Best known for their songs, “Hate Me” and “Into The Ocean,” sales of the band’s self-released, 1998 album The Answers was enough to score the band a deal with Universal Records. With no hits to their credit after three years, the band was dropped in 2002. So Blue October went ahead and released a new disc on their own, History for Sale. The album sold so many copies that Universal signed them up once again. Blue October songs have since become soundtrack favorites featured in television shows like The Sopranos and Ghost Whisperer, but it’s their connection to Stephenie Meyer, author of the Twilight series, that has caused the most interest in recent months. Front man Justin Furstenfeld provided musical entertainment on a short tour with Meyer in 2008, leading to speculation that the band’s music may turn up in one of Meyer’s upcoming movies. In the meantime, Blue October’s hook-filled rock is well worth investigating, even without Meyers’ seal of approval. The Wavehouse, 7:30 p.m., 3125 Oceanfront Walk. $30. 21 and up. Rockola: Sunday, Aug. 9 None of the cover bands plying their trade through the Southland will come close to Rockola. The four-piece group is a human jukebox that specializes in classic rock of the sixties and seventies, played with an accuracy that would make the original artists stand up and take notice. Rockola is the band of choice when backing is needed for a touring act, such as the ’60s hit-makers Peter & Gordon or ’70s Top 40 perennials Badfinger. Rockola has been nominated again for the 2009 San Diego Music Award nominees – a category they have won eight times previously. The best venue to see Rockola is at an all-ages, outdoor concert like Concerts on the Green at Kate Sessions, where the band’s contagious sense of fun fires up a crowd into singing and clapping along. Concerts on the Green at Kate Sessions Park, 4-6:30 p.m., 5115 Soledad Rd. All Ages. Free. Jazz Concert & Jam Session: Wednesday, Aug. 12 Jazz aficionados in San Diego will want to check out Tango Del Rey’s Jazz Concert & Jam Session, held each Wednesday at 7 p.m. Hosted by trumpeter John Reynolds and geared towards the edgier side of jazz, the first hour features a set from a guest artist. Aug. 12 will spotlight piano improvisation from The Bob Weller Quartet, while Aug. 19 will feature modern jazz quintet Apropos. Reynolds and his crew follow, adding local players to the mix throughout the night. With a house band that includes drummer Nathan Hubbard and bassist Justin Grinell, both San Diego Music Award nominees, along with the improvisational jam sessions, jazz fans will want to check out these Wednesday nights. Tango Del Rey, 7 p.m., 3567 Del Rey St. $10. Women Who Rock & Ride IV: Saturday, Aug. 15 After appearing on American Idol in 2008, Amanda Overmyer is on tour promoting her new album, Solidify, that she will perform at Brick by Brick on Aug. 15 as part of “Women Who Rock and Ride IV.” Overmyer will precede the concert with a motorcycle ride at 3 p.m. from San Diego Harley Davidson to Bull’s Smokin’ BBQ. While most of the Idol contestants tend to fall into the “pop vocal” category, Overmyer’s distinctive raspy, smoky voice gives her a unique sound somewhere between the blues of Janis Joplin and the punk-pop of Ronnie Spector. While the show’s emphasis will be on her new, original material, expect the biggest cheers to be for some of her covers like Joan Jett’s “I Hate Myself For Loving You.” Brick By Brick, 8:30 p.m.,1130 Buenos Avenue. 21 and up. $20.