IIRC the location / icon for the song/album repeat toggle hasn't changed in iTunes since 11.0 in 2012 though. The menu entry for it hasn't changed in more than a decade. Music on iOS 10 was a big revamp so that's understandable but iTunes? It simply hasn't changed much or at all in 4 years. No clue how anyone could be confused about it.
I found that on accident the other day. It wasn't very discoverable, but on the whole, I'm really enjoying the UI revamp.