Are there any specific rules about the capitalization of join phrases?
The examples in the Artist Credits style guide are all lowercase, but I could not find anything specific.
In the wild I’ve seen " Feat. ", " Presents ", " in Collaboration with “, " and Friends”.
I don’t know if this has ever beed discussed before.
In my experience they’re generally left in lowercase. I would surmise this would use a rationale similar to the one we use for Extra Title Information (ETI).