If however, you survive all of the above and are left pondering what autumn genuinely sounds like, then take in a performance by post-rock instrumentalists Caspian. They’ll bring their trunk full of wistful, densely shiny yet slowly faltering seasonal sounds to Launchpad (618 Central SW) on Sunday, Oct. 11. This sextet of intense and committed musicians is known for a wandering, drifting assemblage of melodies and percussive moments that evoke human experience as a trip through time and across the multiverse contained right here on Earth. Expansive, trippy and just plain wondrous, Caspian’s latest album, released just a couple of weeks ago is titled Dust and Disquiet. The record is notable for its ability to contain metal conceits within ambient harmonic structures. Beautifully tremulous guitars, heavy-handed, heart-like drumming and bird-sounds contribute to these sonic journeys through the world without and within. Ironically, Circle Takes the Square, a screamo band with experimental tendencies and grindcore foundations (from Savannah, Ga.) starts the evening with an electric roar. Their first album, Decompositions: Volume Number One is required listening for anyone interested in the intersection of emo and metal. Admission to this 13+ disquieting and decomposing autumnal scene is $10. Launchpad opens at 7pm and liftoff is at 8pm.