A=432 Hz, known as Verdi’s ‘A’ is an alternative tuning that is mathematically consistent with the universe. Music based on 432Hz transmits beneficial healing energy, because it is a pure tone of math fundamental to nature.
The universal music of sacred geometry
According to Brain T. Collins, a musician and researcher, the standard pitch (A=440 Hz) does not harmonize on any level that corresponds to cosmic movement, rhythm, or natural vibration. The greatest musicians, such as Mozart and Verdi, based their music on the natural vibration of A=432. It’s true that it is only 8 vibrations per second different from the standard tuning, but this small difference seems to be remarkable to our human consciousness.
There’s a growing musical and metaphysical movement for recovering optimal integrity in the music industry and spirituality through the 432Hz tuning. In April 2008 Dutch journalist Richard Huisken founded the ‘back to 432 Hz’ committee, claiming that this original tuning was used in ancient cultures and is found on antique instruments like the Stradivarius violin.
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Source: Attuned Vibrations
Here is John Lennon’s Imagine (432hz)
Cosmic Logic 