Very interesting and well-thought-out journey through the history of Mike's Song, thanks for putting this together. For what it's worth, the "closing chords" are D -> E -> F#m7

The Clifford Ball Mike's > Simple is one of my favorite pairings of these two songs that were seemingly made for one another. While the straight drop into Simple is undoubtedly amazing, in this version the second jam is the main event of the jam, and it flows perfectly into Simple.

Listen: https://soundcloud.com/user219708867/mikes-song-simple-1996-08-16