+ id3fs allows you to construct boolean queries from a tag folksonomy
+ such as:
+ .
+ goth/AND/decade/1980s/
+ postrock/AND/NOT/rating/terrible/
+ thrash/OR/rapmetal/AND/NOT/wears-a-red-hat/
+ prog/AND/decade/1970s/OR/psychedelia/AND/decade/1960s/
+ location/sweden/AND/screamo/AND/postrock/
+ .
+ Multiple tags can be stored in the genre tag, separated by commas.