There's a difference between Perfect Pitch (which near as I can tell is a right pain in the ass... The people I've know with perfect pitch are the same people who sit in the audience and complain that the fiddle 3rd from the left in the second row is 2.5 cents off Concert pitch.... Most humans can't even hear that difference.... )
Vs. Tonal Memory... that ability to recall with a better than fair degree of accuracy what a givin note sounds like.... As one of these people "What note is this?", and pluck a guitar string or sing it, and they listen as say "Oh... that's C#...." Or whatever...

And from what I understasnd, a lot of people mistakenly call Tonal Memory, Perfect Pitch...

Just my 0.02...

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