When searching for purchased songs iTunes only offers downloads.
When I search for purchased songs or albums to add them to a playlist, iTunes only offers a download even though the items are available in the Library.
I have unchecked 'Always check for available downloads' but it doesn't help.
I suspect that the problem is related to my iTunes library being on a drive separate to my boot drive, but I thought that was quite common.
I am using iTunes for Mac 12.7.3
Mac Pro (Mid 2012), macOS Sierra (10.12.3)