I read something on this subject to do with something called the Solfeggio frequencies, I found it interesting enough to actually listen to some.

The main six Solfeggio frequencies and their purported properties are:

396 Hz – Liberating Guilt and Fear
417 Hz – Undoing Situations and Facilitating Change
528 Hz – Transformation and Miracles (DNA Repair)
639 Hz – Connecting/Relationships
741 Hz – Awakening Intuition
852 Hz – Returning to Spiritual Order

I think if you key in "Solfeggio frequencies" on youtube you will find some examples to listen to.