Finally got around to learning the song "Breathe" by Pink Floyd on the piano. The chord sequences are just dripping with chill. This song reminds me of Zepplin's "Rain Song," in that I could listen to it and play it for hours on end. Pink Floyd recorded this song with a guitar mostly doing the chords. It sounds amazing with the keyboard filling in, especially with some funky preset like 70s funk.

Breathe:
https://www.youtube.com/watch?v=jcz0YxYl6Ac&list=RDjcz0YxYl6Ac&start_radio=1

Quick and dirty tutorial on the chords (you can mess around within the chord in the right hand for a melody):
https://www.youtube.com/watch?v=apQRi_B5miE