How do I get my music purchased from Itunes to play on my new laptop?

How do I get someone elses music on their computer to my music library?

How can I play my iTunes music library on windows media player?

How do i get the music from my Ipod onto my new laptop without copying the musics onto cds?

How do you transfer music from your iPod to iTunes library?

How to get music from itunes into your regular music library?