How to delete specific songs from iCloud?

My mom just got her first iPhone, and she wants to use the iCloud for storage (in this case, songs that she purchased through iTunes). My entire family shares one big iTunes account, and we all have music on there that the other three people in the house don't like. Is there any way to delete certain songs from the iCloud while keeping them in the iTunes library?

For example:
- My mom purchased an Adele album.
- I purchased an Anthrax album.
She doesn't want my Anthrax album on her phone (through the iCloud) but she DOES want her Adele album (through the iCloud). How can I delete the Anthrax album from iCloud (while keeping it on iTunes for me) and keep her Adele album on there for her easy access?

The iTunes store provides a cloud for all purchases free of charge. It is completely separate to the storage iCloud.

Your mother can sync the Adele album to the phone without syncing the Anthrax album, In the settings the iPhone, select music and turn off 'show all music' to hide your album.