Relating to the discussion a ways up there ^ from a while ago. Arts and Letters Daily just featured an article reviewing a new book that suggests we are all born with perfect pitch.

I've got it and always have had. Great Western engines whistle A flat (above the treble stave). My brother hasn't got it. He can play the piano and read and sing a choral score, so he, too is quite musical. We both had exposure to music, and a piano, from birth. From that, a reasonable deduction would be that I was born with it and he wasn't. The reviewer rightly says that perfect pitch (I prefer Absolute Pitch) is of no use except as a rather flashy talent (though I've never pulled a bird with it) but spoils his argument by saying it actually inhibits the understanding of language. I don't see this, and have never thought of speech as having a pitch, more of a continuous modulation from which much can be deduced. Absolute Pitch is only a form of memory and to be perfectly honest I don't quite understand why anyone who plays an instrument hasn't got it.

Er, why don't you understand, given that you've deduced it's something that some people have from birth?

BTW, I haven't read the book, but I wonder if part of the argument that it inhibits language acquisition is to do with the subtleties of intonation - where the pitch is contextual rather than absolute. To interpret the same intonation in different people, you'd need to slide up and down the scale depending on who was talking. Which is interesting to consider when you link it with the fact that a common feature of autism (strongly associated with a weakness in interpreting the emotional states of other people) is a monotonous voice with very little subtlety of intonation. I'd better go read the book now, hadn't I?

I would have thought that most people have a good sense of frequencies - in that they can tell if a singer or musician is 'off'. The ability to recognise a note and give that note its correct nomenclature is a learned skill and therefore should not be part of a discussion about hearing. I wouldn't know a B flat from an A sharp, by name, unless the difference was demonstrated to me. If a musician (particularly those who play stringed instruments) cannot 'tune' their much beloved device then why (and how) are they playing?
[Rosie] On reviewing my post I think I sort of agree with you.
[Projoy] I'm not sure. Some oriental languages seem to rely on intonation changes for the meaning of various words and phrases - though English does the same to some extent - but I suspect that your comment regarding a 'sliding' scale must be true and would certainly not rely on perfect/absolute pitch, just the variation in such.