Wayne Parham Messages: 18788 Registered: January 2001
Illuminati (33rd Degree)
440Hz is A above middle C. A musician or group can always be off a few Hertz, and as long as they're all off by the same amount, it's fine. But the standard A-note is 440Hz.
I wouldn't pay attention to tin-foil-hat wearers that discuss which single tone "sounds better" but I would encourage you to look at which scales sound better. I don't mean which of the common scales sound best, like C major or A# minor. I'm talking about scales like chromatic, octatonic, heptatonic, etc. There are lots of different scales, and they all sound a little different.