Jeremey McMillan wrote:

>By recognizing chords, I can play songs instantly.  Just tell me
>what key it's in!

Sorry, but I had to quote this old gag:

Man in bar to house pianist: Excuse me, do you know your fly's undone?
Pianist: No, but hum a few bars and I'll see if I can fake it.

Richard Pennycuick
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