Musical tone associated with astral travel?

Hi,

I've been trying to astral travel by listening to musical tones, but I don't know which tones they are. According to the OBE/ND episode of 48 hours, a woman said that she was undergoing brain surgery and heard the "D" tone as she was leaving her body. That says to me that one of the chakras, either the crown, or the 3rd eye, was stimulated during the surgery. Can anyone tell me what cd(s) to use to activate/stimulate those two chakras? I'd like to be able to astral travel or have out-of-body experiences again. I have even read that the two chakras control telekinesis, something else I'd like to try.

Please help. 

I did not find the right solution from the Internet. 

References:- 
https://www.world-of-lucid-dreaming.com/...hp?t=19037
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Thanks!