I have seen sometimes that artists get mentioned more than once in the artist credits if it’s a medley or compilation.
E.g. “Song A / Song B / Song C (medley)” by Artist A / Artist A feat. Artist B / Artist A
Is that how it’s supposed to be (to know which part of the song Artist B is featured at) or is it sufficient to credit this track to “Artist A feat. Artist B” and then distinguish it further with medley & vocals relationships?