EDIT: Also,
a small note you might want to add to the original post: A majority of the themes are from previous video games and therefore are arrangements, as well as having an original title other than "Theme Of [Character]", such as Hsien-Ko's theme which is "Oriental Sisters" by Kow Otani and is from Darkstalkers. Given that these are arrangements, it would be wise to put their original games and original composers in the tags.
However, I believe the proper title of these should indeed be "Theme of [Character]". Just put the original name in tags.
All of Capcom's characters have themes from specific video games, so remember to put that video game in the tags.
Some of them, but not all,
are available from this wonderful website. If you'd like, you could probably put all of the information from there in the original post. That would help a ton and really advance the project.