There's more than one way to hear it: Multiple representations of music inMPEG-7

MPEG's latest effort, the Multimedia Content Description Interface, or MPEG -7, promises to standardise descriptions of Audio-visual material to allow universal indexing, retrieval, filtering, control, and other activities sup ported by rich meta-data. We give an overview of the current conception of MPEG-7, outline responses to the Call for Proposals, give examples how curr ent practice could be incorporated into the MPEG-7 framework, and offer a f ew thoughts on potential directions and solutions for the standard.