There's a funny scene in "This is Spinal Tap" where the band plays a sparsely attended outdoor show, and end up trying this jazz riff song that falls apart, a freeform jazz exploration, as a last-ditch effort to please the listeners and themselves. Like everything else in that movie, the scene is understatedly spot on and hilarious. But this song is nothing like that Spinal Top moment, except for the exploration. It's nearly 9 minutes long, and Phoenix has slipped in a secret, perfect love song in the last two minutes. It's a hidden gem in this beautiful instrumental unfolding. And for once, I can recommend that you watch the clip. Someone got pretty clever with timelapse photography. Enjoy.