Niffer CalderwoodYes, it’s Basment Sessions — not Basement — and they’re the result of Sunday afternoon spent in south Seattle with a bottles of tequila, mounds of smoked meats, and some of the heaviest players in town. Basment Sessions Vol. I is being released next month. Ma’Chell Duma LaVassar has the story in this week’s music section.Also, while you’re flipping and clicking your way through the section, be sure to check out our recently-updated Seven Nights listings, which include write-ups of dozens of shows around town.