Mmm...probably.
I purposely left this particular detail as vague as possible when we were sorting this out 10 years ago as there were a lot of pages to potentially merge.
A good example of why involves the South Park Xmas album from the end of the century. There are songs there like "Swiss Colony Beef Log" sung by Cartman alone (among others) that don't appear on their Xmas special which was entirely a shameless ad for the album.
For a time, the artist credit was left that way, but usually what's done is to merge the artist pages into the larger page. In that instance, I merged the artist into the South Park page, but left the artist as is. If you hit the link reading 'Eric Cartman', you'll get the main SP page.
That should probably happen here...
There, done.