How to put music into your iphone 5 witout the itunes upgrade?

I need the 11.1 version or higher but I don't have it and my computer doesn't let me download it. Its my school computer so we have the old version and we can't update it. Is there any way of putting my itunes music into my iphone c without downloading anything?

If your music is in the "cloud" you may be able to access it via your iPhone.