Quartet Parapluie has performed in homes, at weddings and even the hipster bar Danny’s in Chicago’s Bucktown neighborhood. Next Tuesday, the classical string quartet performs music by Philip Glass, Arvo Part and Shostakovich at the Hideout in Chicago. They’ll open for musician Daniel Knox, who is doing a Tuesday night residency at the venue. They’ve dropped by WBEZ to class up the joint with their beautiful sounds.