Actually, "Perfect Pitch " ( at least in the UK ) is usually defined as the sound made by a banjo as it hits the bottom of a deep mineshaft. Of course, it doesn"t HAVE to be a banjo----It depends on what sort of "session" you"re in.Most days, I would happily substitute E-flat Bass, or Electric Piano.I don"t know what sort of music the latter was designed for, but traditional English music it was NOT !!