I have 3 separate iTunes libraries on my one Mac computer. This has worked well until I tried to add albums to my "Christmas" library. When I opened it, it had not only the albums I had already put on it but it has all the latest iCloud singles that I added to a separate library. I do not want these singles on my Christmas library but I do not want to delete them from my other library. Does anyone know how I can delete these iCloud singles from the Christmas library without deleting them from my other library?