Peanuts by Charles Schulz for December 03, 1951
Transcript:
Charlie Brown and Patty sit nearby listening to Schroeder play the piano. Charlie Brown exclaims,"He's flat!"<BR><BR> Schroeder grimaces as he says again,"Hear that? He's flat!"<BR><BR> Schreoder glowers at him as he continues,"I can always tell...I've got a good ear"<BR><BR> Patty sits and looks down at a fallen, pained, and dazed Charlie Brown. She says,"You're flat, Charlie Brown!"<BR><BR>
You can’t be “flat” on a piano. Voice, strings, brass, woodwinds, sure. Percussion, not so much.