Tumblr is built on people posting things, and when people post things, they (should) tag them appropriately so that they may be indexed/easily/categorised etc.
At the moment, posts made to Tumblr by Spotify are only tagged with:
I believe that they should be tagged with
This makes a lot more sense and is a lot more in-line with the way Tumblr posts are supposed to be tagged, simply tagging 'music' and 'spotify' are way too broad.
Perhaps this could be user configurable so the user can actually choose which details to tag their posts with?
Let's avoid duplicate ideas!