User Profile

I want the recently played songs for a user. The documention doesn't specify what is included in the response other than to say "recently played resources." The responses I've gotten for myself contain only albums and playlists. Did I miss something or are songs not available in the Fetch Recent endpoint?https://developer.apple.com/library/content/documentation/NetworkingInternetWeb/Conceptual/AppleMusicWebServicesReference/GetRecentlyPlayed.html#//apple_ref/doc/uid/TP40017625-CH62-SW1