If this meeting of perpetually nervous, thinking guitar bands doesn’t turn into the best twin bill of the season, I promise to eat my entire collection of Velvet Underground albums. You might identify the Feelies as the cooler-than-cool group from the reunion scene in Jonathan Demme’s Something Wild, the artistic pinnacle of North Jersey nerd rock, or the geniuses who discovered minor chords before R.E.M., but none of these would prepare you for the sheer drama of their slipping, sliding, slithering, striking live sets. Shrewd landscapers whose odd guitar and percussion textures can capture pastoral serenity and urban anxiety within the same three minutes, the Feelies convey how “New Age” music might sound if it had sharp claws and wore dancing shoes. Chicago’s equally distinctive Eleventh Dream Day makes the perfect concert match, a two-guitar funnel cloud that drags its slightly possessed narrator through enormous gusts that howl and whisper and pounce. On numbers as harrowing as the Feelies’ “Slipping (Into Something)” and Eleventh Dream Day’s “Life on a String,” standard categories ranging from folk and punk to roots and metal all collapse into the single term adventure. Expect crazy rhythms, crazier cover versions, and two daredevil rides around hairpin curves. Saturday, Cubby Bear, 105 9 W. Addison; 327-1662.

Art accompanying story in printed newspaper (not available in this archive): photo/Marty Perez.