Rarely have one-off projects been so productive. If the net gain of Wild Flag's profligate 2011 is the conception of a fantastic descendent and the resurrection of a classic antecedent — not to mention the marginal return of one of the best albums of that year — then losing it all has been more than worth it. No one knew for sure that Sleater-Kinney was coming back when Carrie Brownstein lowered the Flag in early 2014; no one knew of Ex Hex, which Mary Timony would debut later that year. This unlikely scenario, getting two beloved bands out of one, is the rarest of rock post-nups, outside of Ex Hex's Timony, Betsy Wright and Laura Harris joining forces with Sleater-Kinney's Brownstein, Corin Tucker and Janet Weiss to form a dozen-deep X-chromosomal Voltron (please make this happen). As it actually happened, the two resulting records, Ex Hex's Rips and January pick-up game No Cities to Love (Sub Pop), arrived three months apart — the latter 10 years after Sleater-Kinney wandered off into The Woods and 10 months to the day after Rolling Stone published a profile titled "Carrie Brownstein's Life After Punk." ("Does the world need another Sleater-Kinney album?" Fred Armisen asks, rhetorically and prophetically, in the piece. "It's like asking if the world needs food.") Unquestionably the trio's most fun LP, it is everything that's great about them all at once: feral and foxy, deeply in touch and forever out of bounds. THEESatisfaction opens. Tickets $30.