How to add multiple artist to the song

How can i add multiple artist to the song. How do i split them? Because dot (.) doesnt work and comma (,) doesnt work either. For example if there was two artists in one song how do i do that

In Mp3tag you can create 2 fields of the same type, e.g. for the field ARTIST.

But before you start any kind of splitting, you have to find out what the target player supports.
See this thread to shed some light on the problem: