Thanks but, maybe my question should have been clearer. I know that if you import a file from the desktop as an example, it copies the fie to the library, and then you can delete the desktop file. I'm talking about something else
I noticed it when I was dong a spotlight search for something else... the same string happened also be in the title of a song I have in iTunes. But spotlight displays two entries for the file (and any other song I search for) and each entry is in a different location on my hard drive, and even has a different file name:
example: spotlight search for "Is there a Ghost" by Band of Horses reveals two files: cmd-I tells me they are in different locations:
1. /Users/usrname/Music/Is there a Gost.m4a
2. /Users/usrname/Music/iTunes/iTunes Music/Band of Horses/Cease to Begin/01 Is There a Ghost.m4a
So... what's up with that!?