This is Canon by Pachelbel. I have mixed some pictures in the song to make it even more relaxing :). Enjoy and feel free to comment.
Pachelbel - Canon In D Major. Best version.
Beethoven Moonlight Sonata (Sonata al chiaro di luna)
Pachelbel Canon en Re Mayor-RTVE (Adrian leaper) Orquesta sinfonica Navidad 2008
Canone di Pachelbel - 432 Hz (frequenza benefica) - HD
Canon In D | Pachelbel's Canon | 1 Hour Version
Canon Pachelbel - Magnifique Version!
Four Seasons ~ Vivaldi
L. Boccherini: La Musica Notturna delle Strade di Madrid - Op. 30 n. 6 (G. 324) / J. Savall