FWIW, you can trivially pirate music from an iTunes library [1] with an external hard drive or USB stick or, in fact, an iPod mounted as an external drive. You

FWIW, you can trivially pirate music from an iTunes library [1] with an external hard drive or USB stick or, in fact, an iPod mounted as an external drive. You could also play music from an iPod that was plugged in, IIRC, which should have been enough for the recording studio/karaoke use case. But you couldn't just copy music from an iPod to your own library, indeed (I doubt the music industry would've gone along with that for very long, either). [1] except DRM'd music, such as music purchased on the iTunes Store between its debut in 2003 and 2009.