For "really bad tracks," I like
Matt's recent suggestion of rating them with one star and then filtering these out using
Access Control. That makes it very easy to add items to the "filter." I can, for example, set a one-star rating with my remote and—poof—it's gone. Such items are no longer visible, but I generally don't care to see tracks I don't want to listen to. If I need to see them, I simply turn off
Access Control.
For entire genres or classifications of tracks, I'm having difficulty seeing the point of the feature. There are other more appropriate ways to deal with such things. I put all my "Christmas" music in a separate genre. If I don't want to hear it, I don't select that genre or otherwise allow it to be included in what is being played. If I had test tones in my library, they too would be in a separate genre, although they would probably also be excluded from my main view and included in a separate view. No matter what it is, I have the ability to exclude or include it what is to be played. I understand a "playback filter" could prevent a test tone from being played, but then how do you play a test tone?