Statistics for active vs. passive absolute pitch?

Mamianka: your definitions are correct- active absolute pitch is the ability to produce a required pitch; passive absolute pitch is the ability to identify notes.

Reliable stats: I'm not sure. Most of the studies I've read on perfect pitch use speed of response as an indicator. Some remove everything except pitch information to ensure that other cues are not being used.

Raymond: from here http://hy8fy9jj4b.scholar.serialssolutions.com/?si...

"Not all people who can identify the pitch of a tone absolutely can also produce a tone at a given pitch absolutely (Petran, 1932; Revesz, 1953). Weinert (1929, cited in Petran, 1932) found that only 14 of 21 AP possessors he tested could produce pitches absolutely."

Numerous studies show that most people have better recognition than recall, which is what this is an issue of.

I have perfect pitch, and the ability to identify notes has been present since I learned what their names were, but it took some time to be able to sing any given note. It's like the difference between being able to recognise a colour and being able to mix it on a palette.

Yes, perfect pitch is only to do with pitch, but there are people who can use cues from tone colo

*from tone colour to identify notes, especially on their own instruments. The studies to which I referred in my first set of additional details removed such cues to ensure that only pitch identification was being measured.