Download iTunes from https://www.apple.com/in/itunes/download/ and install the software into your PC.
Now open the software and connect your iPod with your PC with the help of USB cable.
Look at the i tunes you can see your i pod connection. Now open your i pod memory and transfer song in it.
There is an option in iPod transfer songs, use this option to move the songs in your i pod.
If you have any question mark comment below.