How to sync only my music to my iPhone?

I just want to sync a few songs to my iPhone and then get it over with, but every time I press sync, they always start backing everything up and it takes past 10 minutes just to do that and then it'll do a whole bunch of extra stuff only in the end for me to have to sync my stuff again because it didn't even sync my music the first time. So how do I sync just my music without going through all that extra stuff that I'm not even trying to do?

I don't think it's possible to sync music only. You can uncheck things like apps, movies, photos, and contacts so they are not synced by going to their respective, but iTunes will always do a backup to your iPhone if you sync. I don't think there's any way around it, unless you search for more obscure methods then you might find something.