I finally figured out why I can't sing on pitch, it's doppler distortion!
When I try to sing, subsonic millihertz vibrations in my vocal chords cause
the audible notes to be shifted in pitch, and since my eardrums are subject
to the same millihertz vibrations, they are in motional phase with my vocal
chords, the result being that I don't hear the variations in pitch until I
play back the recording. Yeah, that's the ticket, I'll blame it all on
Doppler! *LOL*
Thanks guys, for inspiring such a novel, rational sounding excuse for why
I can't sing!:-)