When Halloween falls on a Wedenesday, you’re justified—nay, obligated—to celebrate the weekend before. Pretty much every venue in town is throwing some kind of party Saturday night, but you can start off tonight (Thursday) at the Bayou Café with Wild Adriatic, Barons in the Attic and Deadbeat Darling (8 PM, free with costume, 462-9033). . . . That guy Henry Rollins is back in town tonight, but he’ll be dressed in his storyteller costume at the Egg for the “Capitalism” tour (8 PM, $23, 473-1845). . . . So, you probably heard about the chaos at the Armory this past weekend. The future of electronic music at the venue may be up in the air, but it looks like the Masquerave is still on for tomorrow (Friday) night (8 PM, $20, 512-5203). . . . Skeletons in the Piano were born on Halloween (figuratively speaking) and will be right at home at Putnam Den on Friday ringing it in with Party Boat, Linear North and Cosmonauts (9 PM, $7, 584-8066). . . . English folk singer Laura Marling brings her Working Holiday Tour to MASS MoCA on Friday (8 PM, $19, 413-662-2111). . . . It’s a full evening of murder ballads Friday night at Caffe Lena, featuring some of the area’s creepiest songsmiths (8 PM, $20, 583-0022). . . . Jamband allstars Moonalice will be at the Linda on Saturday with Professor Louie and the Crowmatix (8 PM, $15, 465-5233). . . . Troubadour Jackie Greene lands at Club Helsinki on Saturday (8 PM, $18, 828-4800). . . . Old Songs comes to life on Saturday with British songwriter Jez Lowe (8 PM, $20, 765-2815). . . . Break out the costume one last time for Valentine’s Halloween show on Wednesday with Floodwood and the Sunny Side of the Street Band (9 PM, $14, 432-6572).