Mac question

Hi there Experts..

For my Mac experts... i was tasked to copy all data from a Mac OS X, Ver. 10.5.8.

I checked all folders in finder under the current (and only) "user profile" - desktop, documents, downloads, music, pictures, etc.  and copy them to an external drive. The computer's owner told me that he downloaded his cd collection to the computer and he wants the music out, the problem is that i don't find it anywhere, iTunes only shows few tracks and not really his music collection. I am not a "mac expert" but i manage to work with them, i went through the directory structure as i would in Windows but i could not find a folder with music. Am i missing looking in the right place? There's a possibility that there's nothing on this computer  but i want to make sure i'm looking in the right places.

thanks in advance for your help.