Kraftwerk's "Ralf and Florian" started me on this peaceful genre. Other favorites include: Edgar Frose-Aqua, Michael Stearns-Planetary Unfolding, Eno/Jon Hassell-Fourth World Vol. 1 Possible Musics, Harold Budd-White Arcades, John Serrie-And the Stars go with You, Midori-Bali, and most recently, Shastro-Tantric Heart