This month's guest mixtape comes from the excellent, eccentric and boisterous Perhaps Contraption. The nine piece art-rock brass marching band is known for its high energy shows, blending a wide variety of musical genres like post-minimalism, jazz, contemporary classical, and avant-rock. We're happy to confirm that the music selection sent to us by artistic director and piccolo/flute player Christo Squier is just as eclectic, fun and frantic.