[mb-style] Clean up CSG

[Leiv Hellebo]

Brian Schweitzer wrote:
> What we really could use is a musicbrainz-classical mailing list, where 
> classical issues can be discussed in as much detail as we need, without 
> making all those who could care less about classical crazy.

No we don't.

By using relevant subject names it should be easy enough for those not 
interested to quell the urge to start reading about delimiters for 
separating movement types from movement tempos and what not.

And for most discussions more eyeballs tend to beneficial.

leivhe