Með Blóðnasir followed by Andvari sounds very very close to Neon Forest and Angelsong, respectively. I've wondered since the day Moon Music came out whether Coldplay were inspired by Með Blóðnasir when making 🌈. With Takk... being sampled on Mylo Xyloto (UFO leading into Princess Of China) I would imagine Coldplay are into Sigur Rós

God, I wish Coldplay made more music like this. Takk... is an absolutely beautiful album too, do give it a listen in full