The barcode technology began development in 1994, when a Japanese corporation created the QR (Quick Response) Barcode, designed to be decoded at high speeds. Now, artists like Grum are imprinting the QR codes on their merchandise so that users can simply point their camera phones at a poster like a magic wand, and (ta-da!) immediately discover new music...or old hip-hop. RhymeLibrary exists solely to re-connect music lovers with old-school rap via QR codes, making it possible to stream Funkdoobiest and N.W.A. straight to your cell following a quick barcode scan.