can i move my music to the cloud then delete from my pc?

You could, but why would you? Hard drive storage is dirt cheap nowadays. Why not have a local copy? (especially since you already have it)

finnstones wrote:

can i move my music to the cloud then delete from my pc? using icloud.

Yes, by using iTunes Match

Note that Cloud/Match is not the same as a backup or archive of your music. For example, if you have a top quality AIFF file of music and use Match, it will store it as a lesser (but still okay) quality AAC copy. There's a number of similar reasons for not seeing this as the equivalent of a proper archiving drive but basically Match is designed as a convenience for those who want their music anywhere but are willing to work with the multiple, if minor, discrepancies between it and carrying around a hard drive.