This early-evening bill is a reminder of those not-so-distant times in the late 1990s when Frogtown and adjoining neighborhoods Silver Lake and Echo Park were still relatively cheap, ethnically and culturally diverse places to make music and perform live. The Neptunas have been playing surf music at SoCal backyard barbecues and local dives since forming in 1994. The all-gal trio bash out classic surf instrumentals with a garage-rocking primitivism instead of a slick exactness. The Neptunas can get pretty sloppy, but just when everything sounds as if it’s about to fall apart, bassist Pamita Neptuna will coo an endearing garage-rock tune, and the day is saved again. Lawndale have a heavier surf sound that stretches out into grunge, punk and psychedelia.