-new MusicManager -fixed tags not really doing anything, to now track any change in the tag-situation, switch music accordingly, and pick the right tagged tracks -preventing same tracks from repeating (currently checking the last 3 tracks played) -switching songs when conditions change, such as day becomes night, or weather changes -supports randomly occurring silences, when a track finishes, dictated by a percent chance and min-max duration (and not having just played a silence) -tracks now properly fade to silence when switching due to tag-changes (which never really happened before, I think)