Certain items are not available in my iPhone, but it plays in my Mac.

Today I wanted to listen to this contemporary classical composer called Brian Ferneyhough with my newly bought iPhone 6s, via Apple Music. When I pressed the album in order to play it, it said, and still says:

"Item Not Available

This item can't be played."

My first instinct was that this album was not available in the French region of Apple Music. But strangely enough, I added the album in French Apple Music from the first place, with my Mac. So I opened up my Mac and played the album: it worked fine.

I got confused and tested out a few other things. For example, I did the same thing with the record label that featured Brian Ferneyhough. For exmaple, Gérard Grisey albums, from the same label. Samely, it did not play in my iPhone, but played fine in my Mac.

The record label is called 'Stradivarius' (https://en.wikipedia.org/wiki/Stradivarius_(record_label))

I use the same Apple account for Apple Music in my Mac and my iPhone.

Thank you.