I want to transfer all of my music from my phone to iTunes wirelessly. Is there a way to do that?
There are lots of apps that will let you do this but one I like is AirDroid. Music isn't stored in any special format on the S4 so you just copy music in the same way as you would copy any other file.
You can connect wirelessly to your S4 using AirDroid and access it using a web browser. File transfer is just one of its many useful functions.
Separate names with a comma.