How can i put music on my iphone without loosing my photos,app,contacts

Why would you lose anything?

Syncing music

For information on how to sync music read this, this or this.

After seeing his last post (now deleted) I am sorry I helped

No my comment was directed at Roaminggnome. Like I said if I knew before hand how you react to people on this forum I would not have helped you. I will remember your username and should you ever ask a question on here again I certainly will not be giving you any input