"The Echo Nest’s proprietary music analyzer API automatically analyzes audio (e.g. aif, wav, mp3, m4a), and generates an XML file that describes the musical and structural content of the music. That representation can help power music visualization, music games, artistic installations, content-based and DJ applications with a much deeper level of music understanding. "
It’s a universal binary for Mac, and I’m working on the Windows version. The object uploads the contents of a buffer~, retrieves the associated analysis, and parses and stores that data for use in Max.