It’s not hard to trace the path from Audioslave to the boys, but the two groups are also clearly distinct. Audioslave is the last vestige of the old rock order: smothered in grunge, aggressively male...

On Sept. 25, four Instagram accounts simultaneously posted an update to their feed — singer-songwriters Julien Baker, Phoebe Bridgers, Lucy Dacus and the account dedicated to their American indie supergroup,...