Putting the BS threads below the music thread, with the clickable link to both, is an excellent idea. So is leaving the BS alone, unless a post is a personal attack, rule breaking (as with the cut and pastes), or a tech fix. Stick with that, and not try to herd cats by controlling/consolidating based on subject/content, and you are homefree.

Also, can't one of those clickable links you are using to get to top/bottom also be used to an index on related threads by topic? A lot of forum admin softwares allow you to do that sort of grouping/indexing.