Pls see my comment about a patch introducing full quarter tone support for all the languages - including a complete and consistent MusicXML import language support.
I've asked on dev list about introducing català and português as "official" consistent proper language names. It's already included in the patch, but if people think it should stay as it is, I'll remove the new names. Thanks, Torsten https://codereview.appspot.com/571630043/