Not easy. Convoluted but successful.
Why not just export a copy of the music to the Desktop, change the name of the file as desired, then just select and drag it onto the iTunes app icon and it should import it into the users library on its own and play it.
- Patrick
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See post #2 above, Duplicate a tune in iTunes.So, Ian, if your "foolproof way" is available to this peasant, it would be appreciated!