Deletion of List of films about pianists

Comment: as #DIR|loosely associated list
Stance: delete
Cited policy: Wikipedia:What Wikipedia is not (WP:NOT)

Comment: this is a #DIR|list of loosely associated topics. Note that this used to be called "Piano in popular culture" and was AFDed once previously under that title to a result of Wikipedia:Articles for deletion/Piano in popular culture|no consensus. The keep reasoning was poor then and remains poor
Stance: delete
Cited policy: Wikipedia:What Wikipedia is not (WP:NOT)

Comment: This is useful, non-trivial information. Regardless,  applies to trivia ''sections'' within articles, not to categories some might arbitrarily deem trivial. Also, although it's been referenced as a justification for deleting this list, I can find no section of  relevant to this list. Also, I don't think the slippery slope argument cited by the nominator should be sufficient justification in itself to delete a useful category. Why not delete any inappropriate categories that a category may spawn, rather than deleting a useful category
Stance: keep
Cited policy: Wikipedia:Manual of Style (WP:TRIVIA||WP:NOT)

Comment: per .    Also loose inclusion criteria since this film is about an occupation
Stance: delete
Cited policy: Wikipedia:Manual of Style (WP:TRIVIA)