This is very simple. I was stuck on the train, I didn't want to listen to an album, I couldn't easily make a playlist without using the mouse a lot, that's really stupid because Emacs can navigate directories very easily.
So I wrote this.
Right now it is just 2 commands:
rb-queue <song>
Which just shoves a file from your Music folder onto the rhythmbox queue.
rb-what
Just displays what is being played.
I'm sure there'll be more stuff some time in the future.