The Media field type allows setting media type to HTML5 Audio. When set to audio I would expect to be able to upload audio files such as MP3.
Currently the accepted MIME type is hard coded to be video/*, where as when the media type is set to HTML5 audio, it should be audio/*.
Steps to reproduce:
1. Edit content type
2. Add Media field
3. Set Media field type to "HTML5 Audio"
4. Create or edit an object with said content type
5. Try uploading an MP3 file to field
6. MP3 will not be accepted