Boston post-hardcore grunge rockers Pile played an explosive set at Eclectic House on Friday night, careening through  songs from all corners of their extensive catalog. Accompanied by their Boston noise-rock buddies Kal Marks, Pile's innovative grunge rock never sat still for long, turning on a dime from sparse moments of guitar-plucking intimacy to stadium-scale explosions of ragged, angular power chords. Songs from their upcoming LP You're Better Than This  popped up throughout the night, distinct from the rest of the set  in their unprecedented dissonance and experimental composition.