Peter Buck is no stranger to jumping on stage for a good jam, so when former Hüsker Dü frontman Bob Mould swung through Athens, Ga., on July 25, 1990, in support of ‘Black Sheets of Rain,’ the R.E.M. guitarist pitched in on a crunchy cover of Neil Young’s classic-rock staple ‘Cinnamon Girl.’

J Mascis will unplug this spring — or, as Dinosaur Jr bandmate Lou Barlow put it, ‘pretend he’s a peace loving acoustic guy’ — for a just-announced 22-date North American tour in support of his first-ever solo studio album ‘Several Shades of Why.’

With Dinosaur Jr on break, bassist Lou Barlow is shifting focus to a revived Sebadoh, with plans to release expanded reissues of 1994’s ‘Bakesale’ and 1996’s ‘Harmacy’ this year and take the famously lo-fi act out on the road for the ‘Bakesale/Harmacy Remembering Time Tour.’

This week’s new releases include ‘Hard Times and Nursery Rhymes,’ the new album from Social Distortion; a 3CD ‘Omnibus’ reissue of The Fall’s ‘This Nation’s Saving Grace’; and the vinyl-only ‘Head on the Curb,’ a collection of Mudhoney outtakes and demos.

The playlist from tonight’s ‘Dark Wave’ — the Sunday night ‘darker side of alternative’ show on Sirius XM’s 1st Wave — features tracks by The Cure, Killing Joke, Siouxsie and the Banshees, Joe Strummer and Love and Rockets.

Last October, Sonic Youth ventured to Austin, Texas, to tape a performance for the venerable public-television concert series ‘Austin City Limits’ — an episode, also featuring The Black Keys, that finally debuts next Saturday.

On a recent swing through Los Angeles, Damon Gough — aka Badly Drawn Boy — stopped by Village Studios to record a few songs for the Nic Harcourt-curated blog Live Buzz, including this cover of The Stone Roses classic ‘I Wanna Be Adored.’