Asking a person to dance can create all kinds of Stress
Changing the stress pattern brings different contexts into the meaning of a sentence. For example:
“MAY you have this dance!" suggests to me that the process of asking permission is a major prerequisite here.
"May YOU have this dance!" suggests to me that the person was expecting (hoping) any one else than me to ask.
"May you HAVE this dance!" just sounds a little strange (unnatural) to me since there is nothing else I could do with a dance (other than what my wife says to do, and I can’t repeat that).
"May you have THIS dance!" suggests to me that almost any other time would have been better to ask.
"May you have this DANCE!" suggests to me perhaps that I mis-read the situation and they were really practicing judo. (Ironically, this is how my wife describes my behavior on a dance floor).