Just found a web site for my past computer science capstone project “The Musical Organizational Tool set in an Interactive Virtual Environment (MOTIVE)“. This was a program that would create a 3D space of MP3 files organized by similarity. Users could then browse the 3D space and as they got closer to the “strip” representation of the MP3 the music would get louder. You could hear multiple files at once, the closest one being the loudest. Has anyone seen this as a commercial product yet?