Quoted from WhiskeyTango:It's been a little while, but IIRC you only need to replace it once; It's just referenced multiple times.
After replace the first one, play the other requests and it should play the track you imported.
I can confirm this is how is works when I was replacing some music in the AIQ code. But as Whisky says, just test play the other references once you've plugged in your song once to confirm.