“Boston art-punks Guerilla Toss' "Trash Bed" is what Ponytail would sound like if they lived in the same abandoned-warehouse practice space as Death Grips, or what the Shaggs might have produced if their father forced them to listen only to no-wave records. Lead singer Kassie Carlson has a squeal that hits your ear like an upraised staple poking your thumb, and the music behind her is a similar arr”