Gazetteers: 6)Contributor first names; 7)Contributor last names; 8)Contributor types ("soprano", "violinist", etc.); 9)Classical work types ("symphony", "overture", etc.); 10)Musical instruments; 11)Opus forms ("op", "opus"); 12)Work number forms ("no", "number"); 13)Work keys ("C", "D", "E", "F" , "G" , "A", "B", "flat", "sharp"); 14)Work Modes ("major", "minor", "m"). 
 Question: What task-specific features are used?
6)Contributor first names 7)Contributor last names 8)Contributor types ("soprano", "violinist", etc.) 9)Classical work types ("symphony", "overture", etc.) 10)Musical instruments 11)Opus forms ("op", "opus") 12)Work number forms ("no", "number") 13)Work keys ("C", "D", "E", "F" , "G" , "A", "B", "flat", "sharp") 14)Work Modes ("major", "minor", "m")