collaboration where sequel tops the original

In your opinion, share examples of where the second recording by a special collaboration of musicians and producers is better than a solid first effort? Here is my current example: Floratone II by Bill Frisell, Matt Chamberlain, Lee Townsend and Tucker Martine. Still groovy, but lighter on its feet with more twists and turns than their 2007 "freshman" effort. Super production level on both the first and the sequel. Highly recommended.

Yours examples and recommendations?