Add Ranking field and parse from Work name when matching
This part has to do with the No. abbreviation, Beethoven wrote 9 symphonies, conveniently numbered 1 to 9, usually in chronological order. In the same fashion, but nothing is that simple in life. So whilst Opus indicates publicationorder over all works, ranking is a number within a particular work type (Symphony, Concerto..) by a particular composer.