Q: missing Apple Music downloads

Hello Tay1198,

I understand that you are not seeing your downloaded music after you updated iTunes. I can help you out with fixing that. 

What you will need to do is restore the previous iTunes Library file. This will link all the music that is downloaded from iTunes and show up properly as it did before the update. Take a look at the article below for the steps on how to do this. 

If you don‘t see your content after you update iTunes
https://support.apple.com/en-us/HT203225

Take care.