bling49 said:

Well it doesnt sound like a live version, if it is the crowd was very quiet. There isnt any clapping, woo hooing, any crowd noise whatsoever. I believe its the version that was on the Joni Mitchell tribute album. This version is 3:31 long and its right at the 3:00 minute mark with :31 seconds left

You must be referring to the edited version from One Nite Alone piano album.

From Princevault:

In 2007, a slightly edited version (removing the final coda) was included as the sixth track on the compilation album A Tribute To Joni Mitchell (using the original title, A Case Of You).

And he doesn't go into another song. It's just a weird coda he has on the end of the song. I never liked it, but it is his version of the song. (He also cut the first verse of the song in his versions over the years.)

He dedicated this song 2 his father on the ONA tour when John L Nelson passed

Prince always loved this song,never got to find out how or why or what it meant to him. Anyone have any info?

He loved Joni Mitchell and was a fan when he was young. He even wrote her letters. My guess is he loved her ability to convey complex moods. One of the reasons I love her too. She was also a compete original musically, wrote and played multiple instruments.