Originally Posted by Bass Thumper
.........................................
[i]When you listen to a single note played on an instrument, you’re actually hearing many, many pitches at once, not a single pitch. Most of us are not aware of this consciously, although some people can train themselves to hear this. The one with the slowest vibration rate – the one lowest pitch – is referred to as the fundamental frequency, and others are collectively call overtones.
........................................

I recorded a retired touring guitarist's daughter in my home studio. She sang a C note when it should have been a D. I simply moved the note up to a D; note I don't recall what pitch shifting program I was using at that time. He said that doesn't sound like her. He could tell that the harmonics/overtones for a D note are not the same for a C note. He was the only one I have ever met that could tell the difference.

Life is short so make sure you spend as much time as possible on the Internet arguing with strangers.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware