iOS 7.0.3 same song but in multiple genres?

The only way I listen to music is by Genre. In the past, I've always opened the Music App, then clicked on genre, and gone from there. No issues.

I have major issues with the new iOS and cannot for the life of me figure it out.

Let's say I have a track called "Megamix - Call Out Riddim". This track in particular, I have made the genre in iTunes as "Dancehall".

Here's where things fall apart; when I use the Genres in the new iOS7 music app, not only does it display genres with those horrible pictures that I can't set for myself (honestly - reggae... a palm tree? C'mon...).... But the same track noted above, shows up in both Dancehall genre and Reggae genre.

When I search for just the "reggae" genre using the "workaround", all the dancehall tracks show up (pulling down and using the search bar).

When I search for "dancehall" then all of the dancehall tracks show up.

I have triple checked iTunes about a zillion times as NOTHING has changed on my computer... all of this very same music which I spent HOURS OCD'ing over all of the ID3 tags, works FINE on my iPhone 4 iOS6 (which is now an mp3 player only) and fails on my iPhone 5s.

I don't know what to do, honestl How are songs showing up in mulitiple genres???