How to transfer the song from my iphone to my real player on my computer?

I just bought a new computer because the other is a piece of junk and I need to get the songs that are on my iphone into my real player in the new computer because they won't transfer from my iphone to my itunes in the new computer.

Install iTunes on your new PC.

Then, log-in to the iTunes Store using the User Name and Password that you used to buy all your Music from iTunes.

Then AUTHORIZE your new PC, and connect your iPhone via it's USB cable, and SYNC it.

TIP: iTunes Music isn't even compatible with Real Player, the last time I checked.