I like the idea, would it be possible to add YouTube support (or does that maybe already exist)? (Of course, only playing the audio part and ignoring the video)
Mind you, it does require Tomahawk's latest nightlies / git version.
You can find pre-packaged versions of all our resolvers (updated nightly) here: http://teom.org/axes/nightly/ - just use "Install from file" in Tomahawk's settings and pick the .axe file.