Hey Sweetie ... no, i don't think it will let you post the same song / URL to multiple categories.
I actually tried adding our song ... only to find you already had added it, and it told me so!
It said ... that song is already in the library! ...
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The reason i was trying to add it was because
the one i added was deleted from youtube.
So ... based on that experience ... i gotta say no ... it won't let us do that.
Let me know if i answered the question or if you need more from me.
Love You!
Destee