The current database sometimes mappes listen to an undesirable release, such as mapping to a single instead of an album, or to a wrong/bootleg album with the right recording, etc. I would really appreciate it the user could manually set the release or release group. It would be even better if there is an option to batch set all records of a recording, or if there is a way to view the listening history of a recording, like the feature in last.fm's library.