These meditative sounds are based on an ancient sound scale and are believed to have powerful healing effects. I find them extremely relaxing. Listen with headphones.

Solfeggio Harmonics - 639 HZ - Integrating Structures

http://www.youtube.com/watch?v=CLuEy2p2bBw

Solfeggio Harmonics - 396 HZ - Liberation from Fear

http://www.youtube.com/watch?v=IJUu-...eature=related