The choice of tuning standard for music, whether it is 440 Hz or 432 Hz, has been a subject of debate and personal preference among musicians, composers, and theorists. However, it's important to clarify that the claims about 432 Hz being more "harmonic for health and well-being" while 440 Hz is "disorganized and destructive" are not scientifically supported and fall into the realm of pseudoscience and subjective beliefs.
The standard pitch for A above middle C, known as A4 or A440, was internationally agreed upon in 1939 and later adopted by the International Organization for Standardization (ISO) in 1955. The decision to standardize at 440 Hz was based on a combination of historical reasons, practical considerations, and subjective preferences.
Before the 20th century, different tuning standards were prevalent, and pitches could vary considerably across different regions and historical periods. The adoption of 440 Hz as a standard aimed to create uniformity and facilitate international music collaboration, as well as provide better compatibility with certain instruments and technologies.
While some proponents of the 432 Hz tuning argue that it has special healing or spiritual properties, there is no scientific evidence to support these claims. The perception of music and its effects on individuals can vary greatly due to personal preference, cultural influences, and psychological factors. The belief in specific frequencies having intrinsic healing or well-being qualities is not grounded in empirical research.
It's important to approach such claims with critical thinking and consider scientific evidence and consensus when evaluating the effects of music on health and well-being. Music can undoubtedly have emotional and psychological impacts, but attributing specific frequencies to universal health benefits lacks scientific substantiation.