I had some nice feedback from JAPRA the other day (in her art blog) that she enjoyed listening to my playlists. I found this quite encouraging and have decided to start up my Week in Music playlists again.
The primary reason that I stopped the playlists was a concern for their legality. I investigated Imeem but Imeem playlists do not play on Wordpress as they do not allow embedding of flash content. I then considered moving my blog to Blogger but that is almost unheard of as most people move to Wordpress not from it.
So in order to make the playlists as legal as possible, I have specifically uploaded very low bitrate versions of the songs that are only good for listening and streaming purposes and I've uploaded a disclaimer as well. Hopefully this will keep me on the right side of the law and we'll see for how long I can continue with the playlists.