ditto Jeri. The tonic note seems to be the easiest one to pick out of a triad...but instead of relying on technological superiority, I just hum it and play notes until I find a match on my instrument. Then on to the next chord to do the same thing...

Then comes the fun part: once you've got the tonic (root), what's the rest of the chord?... m7? m9? sus4? dim? aug? b5add9? mutant chord not of this earth?

When 'they' do that studio gimmick of speeding the recording up or down to make it sound "brighter" (your observation Rick?), that throws a monkey wrench into the works. Now, if the player wants to learn the song off the cd, he/she has to tune up/down to match the recording - or endure playing out of tune with the song...an inconvenience.