The name Psychic Vacuum sounds like it might be a metal band, but it’s an acoustic duo appearing at The Tiki House on Aug. 3. Featuring guitarist Howard Coven, also known for his other band Jetwash, the duo also features saxophonist Daniel Nielsen. Playing a mix of originals and select “fan favorites,” the pair has more than a touch of jazz to their sound. But this is more rock oriented, with Nielsen’s sax closer to mid-1970s David Bowie or Roxy Music than it is Dave Koz. • Psychic Vacuum performs at 6 p.m. on Friday, Aug. 3 at The Tiki House, 1152 Garnet Ave. 21 and up. www.tikipb.com The 10th annual Pacific Beach “Concerts on the Green” series continues Aug. 5 with an appearance by one of the area’s most popular cover bands, Rockola. The quartet is made up of terrific musicians capable of playing great renditions of hit rock song from 1955 to 1976, but where they really excel is in their superb four-part harmonies and in the interactive element of their show, which finds much of the crowd usually singing along. If you like music from the 1960s and ’70s in particular, this one’s for you. • Rockola performs at 4 p.m. on Sunday, Aug. 5 at “Concerts on the Green,” Kate Sessions Park. All ages. Free. www.pbconcerts.org Fans of rhythmic music will want to head to Café-Bar Europa each Tuesday through the end of August to catch a set from Afrojazziacs. With a cast of prominent local musicians, including bassist Omar Lopez, who is nominated for a San Diego Music Award this year, the band sings in both English and Spanish, with the six-piece band’s music being a fusion of Latin jazz and Afro-Cuban sounds, with a host of other influences weaving in and out. The end result is songs that would make even wallflowers want to dance. • Afrojazziacs perform at 7:30 p.m. on Tuesdays, Aug. 7 and Aug. 14 at Café-Bar Europa, 873 Turqouise St. 21 and up. No cover. www.theturquoise.com/wordpress Built around the guitar of Scottie “Mad Dog” Blinn and rounded out by bassist Roxy Coverdale and drummer Haley Allen, Black Market III excels at mixing rock, blues and Americana. The trio celebrates the release of its new album, “Songs That Shake The Cage,”with a show at The Griffin on Aug.11. The female vocals give Blinn’s rough-edged vocals excellent backing on songs that fans of Social Distortion or any band with roots music in its repertoire will appreciate. • Black Market III performs at 9 p.m. on Saturday, Aug. 11 at The Griffin, 1310 Morena Blvd. 21 and up. www.thegriffinsd.com Although best known as a solo acoustic blues guitarist, Robin Henkel is actually a virtuoso on any stringed instrument. Nowhere is this more evident than with his aptly named project, Robin Henkel Band with Horns! Here, in addition to his blues material, he also incorporates jazz, swing and funk for a tight and danceable sound. Henkel is a manic performer under most situations, but given full rein with backing musicians, he really lets loose for a show that’s funky and fun. Performing at the Mission Bay Deli, the sunny outdoor location is the perfect setting for Henkel’s good time music. • Robin Henkel performs at 2 p.m. on Sunday, Aug.12 at Mission Bay Deli, 1548 Quivira Way. 21 and up. www.missionbaydeli.com.