Q: Music all screwed up, why?

I can't believe that all of a sudden I can't hear music I have bought (a whole album) is not in the "purchased" area in itunes neither appears "music" app although the individual songs do appear on the list dispursed when I look at ll the down loads???

Is there a place where we can read all the new changes in iTunes/Music in one place? instead trying to find the answers inbetween all the different questions on this board? this is so frustrating. I don't want to subscribe to the music service, why can't I have the old functionality as it was????