@_Hero said:

Some others were talking about a modulation in the Nashville 2nd Jam in Mike's Song that was re-introduced in Summer 2015. Not sure if there's one there or not, I wasn't paying close attention to key signature at the time, jumping up and down with excitement and getting weird looks from my wife as I was.

But I'd like to make a point along these same lines. Phish has being doing multi-modal work in the style of Debussy, Chopin and Scriabin for quite a long time. Recently it's been quite notably consistent in "Light." Check out this one officially released from Phish on Vimeo from about minute mark 5:00, listen closely to shifting tonality of the melody lines and become yourself tonally saavy. You can hear the bass transversing some extremely open, "Copeland-esque" melodic lines while keys and guitar just keep passing their switches back and forth between modes. It's freshy-fresh:

Listen to the above sweet jammy jam especially at minute mark 12:50 and you can hear the concept of simultaneous bi-modality reintroduced by the 13:10 mark in chordal form. The crowd goes wild and doesn't really know why.

~ But you do.

phish.net: your home for getting to know the knowings

Damn, that is super cool. What a fearless, gutsy move.