“The laziest river” is a breathtaking 20-minute-trip into the unknown and comes as a bonus track only on the vinyl version! It has 5 parts and his voice doesn’t even show up until 10 minutes into it! This guy has the ability to write great “opus”-like movie-songs, that spread like endless landscapes and it sounds so easy, when he does it. [Source]
New Music United 
“This guy” is Dan Bejar’s keyboard player, Ted Bois, who wrote and arranged everything on Laziest River except the lyrics. But everything else you said is accurate 😉
Thanks for the heads up, John!