I didn’t make it to the Toronto Music Hack Day, but I’ve heard great things about the event. One hack, built by Ned Lovely is getting lots of attention. It is called Music Radiator. It gives you spot-on genre playlists with a very slick user interface. Pick one of hundreds of genres and just let the music flow. If you give a song a ‘thumbs up’ it will be added to your Rdio collection, give it a ‘thumbs down’ and you’ll never hear it again (well, at least never again on The Music Radiator). Ned has a great sense of design, and the music and the music flows well. I may use this app as my primary way to listen to music when on the web. Check it out.