Q: I have some songs in Imatch that I want to download into my music. The cloud is ghosted and won't let me do this. I have yosemite 10.10.3 running on an IMac retina 5K.

Hello discomonkey, 

Thanks for visiting Apple Support Communities. 

It appears that some iTunes Match songs appear grayed out when you try to download them to your iTunes library. If you haven't already, be sure to authorize iTunes on your iMac before downloading content from iCloud or the iTunes Store. 

These steps can help you download grayed out songs to your iTunes library:

Resolve issues with iTunes Match - Apple Support

Songs containing DRM (Digital Rights Management) might not appear in iCloud, or might appear grayed out. This can occur if your computer is not authorized to play that content. Authorize your computer, then manually update iTunes Match. To find out what Apple ID your computer needs to be authorized with to play a specific song, follow the steps below:

1. Open iTunes.
2. Locate and select the song that you want to play in your iTunes library.
3. From the menu bar at the top of your computer screen, choose File > Get Info.
4. In the Summary tab, find the Account Name field in the right column. Write it down. 
5. Click OK.
6. From the menu bar at the top of your computer screen, choose Store > Authorize this Computer.
7. Type in the account name from the Summary field and enter its password. Click Authorize.
8. From the menu bar at the top of your computer screen, choose Store > Update iTunes Match.

Best Regards,

Jeremy