iTunes and Apple Music

[itsnotmeitsyou]

I'm still new to iOS, so I might be missing something, but does anyone else think it's extremely stupid that iTunes music and Apple Music are not linked together in any way? The way iTunes groups music into charts and categories is much better than Apple Music, IMO. It makes no sense to me that we can't add music to our Apple Music library/playlists from iTunes with a paid Apple Music subscription.