I’ve been working with our MIR team (Music Information Retrieval) on the new instant playlisting engine, designed to provide instant playlists from collections of any size.
The guys have created a playlisting demo which you can try out against your Last.fm profile. Please ty it out give us your feedback. You can also read Mark Levy’s background to the technology on the Last.fm blog.
My part in this has been to think about the user experience and ensure that the catagories we choose to create fit with the natural expectation and behaviors that people use when making their own playlists. This engine will form part of a new iOS product I’m designing for Last.fm.