You cant, not unless you have modded the game.
You can play songs from your ipod touch on guitar hero for ps3 as long as you have the cables to connect.
no retard
download it from your ipod
This option is not available for Guitar Hero, note that an MP3 file (for example) does not include any code for the Guitar Hero game (so it won't know what you need to strike).
No.
You do realize that makes no sense, right?
No, you can't.
Go on iTunes
Sure! Record your songs as MP3 files and transfer them onto your computer. After you import them into iTunes, you are capable of transfering the songs to your iPod.
Import the songs from a music CD
Yes, you can. Insert the CD into your computer and a window from Itunes should pop up asking if you want to import the songs into itunes. I believe you click yes, and the songs from the CD will import into Itunes. You then just connect your ipod to the computer with the USB cord and anything in itunes will sync to the ipod.
if you legally purchased the cd's then yes