If I plug my ipod (with music on it) into a empty itunes, will that music be transferred or deleted?

nothing will happen unless you manually transfer it to your itunes

iTunes will pop up an option to transfer the purchased music from iPod to the computer, you will lost the music that is not from iTunes store.

If you want to copy all music from iPod to the empty iTunes, you may refer to this step by step guide

http://www.ipod-transfer-copy.com/how-to-transfer-...

Hope it helps. Contact me if you need further assistant.

go to file in itunes and there will be something that says transfer songs for ipod

neither. if the itunes settings are on "sync", then it will ask you before anything gets deleted. to transfer the music, go to apple.com, click downloads, and search music rescue. tht program will transfer the music