Austin garage-psych troupe Annabelle Chairlegs recently began recording a sophomore album. Since the quartet’s surf-y 2015 debut Watermelon Summer, frontwoman Lindsey Mackin has amassed a backlog of material, and teased it freely in raging live iterations such as an ACL Fest debut in October.: “I’ve been thinking about the sounds of home, because a lot of the album is influenced by the visual of industrial New Jersey [where I grew up],” explains the singer by phone while shuffling to get ready for work at the band’s shared Eastside dwelling. “A lot of the tracks are heavier, although I still feel they have this lightness to them.”: Some of Mackin’s surplus of “weird, B side-like songs” have spilled over onto cassette-only EP releases as the “Sad Machine Series.” Crafted on a four-track at home, her more intimate solo takes could trickle into the new LP sessions. Alongside housemates Matt Schweinberg and Derek Strahan on guitar and bass, and close neighbor/drummer Billy Wong, the locals promise to sneak in a few unearthed tracks at the newborn Saturnalia Festival.: Bred by the founders of DIY psych haven Electric Church, the lineup binds mostly homegrown bands acclimated to ooey-gooey liquid light shows.: “It’s a festival of friends put on by friends,” says Mackin. “All your friends will be there.”