Here are mp3s of the bands playing in Dallas for Parade of Flesh AND "official" SXSW Showcases.
Alpha list: (click link for mp3)
Die! Die! Die! - Sideways here we come / Auckland is Burning
Foreign Islands - coming soon
Lipstick Terror - The Epitome of A Catalyst Intervention
Mike Bones - Loves Not Yours / Rake / Pope John Paul
Modey Lemon - Mountain Mist
Parts & Labor - A Great Divide/Fractured Skies
Pterodactyl - Esses / Three Succeed
Sian Alice Group - Motionless / Way down to Heaven
Shooting Spires - Right
These Are Powers - Cracks in the Lifeline / Chipping Ice
Torche - Mentor (streaming)
White Mice - Caged Mearachells
EDIT: 2/21 - more tracks added.