Ponytail aren't innovative at all except for the vocals. They sound like a mid-period Deerhoof with a some surfier guitar lines. Deerhoof themselves aren't that innovative; you can trace their sound back to plenty of prog and noise rock bands. Ever heard Thinking Plague? Early Plague Years from 1982 sounds like a more complex version of what those bands are doing... Great band (Ponytail), either way.
Animal Collective are somewhat innovative for a newer band, I'd say. They do completely change their style on every album and have stumbled upon some things unlike anything I've ever heard before.
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