There is no original of the tune in empeg - all references are equal, as you found out. Referencing consists simply in listing tune's FID in a playlist - the list that got it first is in no way special.

I like the feature Roger mentinoned ('replace the tune' - I hope emptool gets it too) - much easier than hunting down all appearences of the tune through emptool's ls -lr output. Currently, when replacing a tune (badly ripped or something) I ftp it over apropriate file, adjusting tag file manually if required and not touching playlists at all.

Cheers!

Dragi "Bonzi" Raos
Zagreb, Croatia
Q#5196, MkII#80000376, 18GB green