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.

[Duj] Pianists can't always tune their instrument, and they seem to get on OK. :)

(Projoy) What I can't understand is why everybody hasn't got it from birth. As I said, it's only a form of memory, like remembering colours. (Dujon) Most people can tell if someone is out of tune, but only relative to some other pitch which is assumed correct. Most people who play a guitar can tune it so that the instrument as a whole is in tune. I have a friend who plays a few tunes (only at home), and plays rather well, and his guitar is in tune with itself but at least three semitones flat. He has a good sense of tuning but none whatever of absolute pitch. I tuned it up for him but he said the strings were far too tight so back down it went.

[Rosie] OK. Why can't you understand that? (PS. I hate to point it out for a third time, but we've already discussed twice why it isn't like remembering colors! Perhaps you remain unpersuaded?)

[Rosie] Perhaps I can help. I have played guitar and sung in very amateur choirs. so I'm not totally lacking in the ability to hear pitch. But I hear lots of other things at the same time. For example, when tuning a guitar I'm often not sure if two strings are at the same pitch because of the different texture of the sound caused by the make-up and length of the string.
The same applies with other occasions. If a man and a woman are singing a duet I could tell you if there was a discord (to my ears), but would struggle to say if they were singing the same note (either an octave apart or exactly) because I cannot separate the pitch of a sound easily from the rest of its character.
Also I find it easy to sing a tune (relative pitch), but have no idea whether I'm singing the same notes as on a previous occasion. It seems to me that the ability to keep or hear a tune in your head does not imply that you remember the actual sound (which would imply that perfect pitch should be possible), but rather that you remember a pattern, which you can then apply to the sound when you remember or sing it.

[INJ] Perfectly described. It is the same for me, except that I'm usually better at the octave thing. At a weekly music school, I always impressed the teacher by being extremely quick at identifying intervals, and thus have a good memory for melody in the way you describe. I now find I have to make more cognitive effort to recognise intervals, but then I have learned a lot more about the subtleties of language intonation since then (through drama but also through acquiring more social skills). Which is interesting.

To me, anyway.

(INJ) Remembering a whole tune would seem to be much more complex than remembering the pitch of a note yet we seems to do it rather well, just as we remember faces rather than any specific physical feature of them. But to me pitch of a tune is an integral part of it and if I hum a tune to myself in the wrong key (because it's easier, say) I still have to assign a key to it.

...is lobbing an accordion into a skip without touching the sides.

On a more serious note, I've had perfect pitch since I could ever remember, both in the absolute sense and the relative sense. So I have very little trouble transposing at sight, as well as playing at sight, or keeping in tune when singing a song in different keys. I've never known how I do it - I also have a pretty fast learning memory for music too. But, oddly enough, I'm lousy at matching names to faces.

(JLE) Yeah, but you're a f****** genius. Would you lob a soprano sax in the skip while you're about it, just for me? Then the five tons of rubble just to make sure.

[JLE] Hi - I'm Kathy. I was the other [apart from pen] female person at Rugby Pilg in May. I thought your piano playing was particularly fine.

I don't have [or have never tested the possibility of having] perfect pitch. I do, however, have an unerring sense of direction, and can point to North however many times I've been spun round. Is this normal?

[Chalky] Wow. I, for one, have never heard of that. Out of curiosity, how accurately can you do this (exactly north, or just approximately?), and how rigorously has it been tested (not quite sure what the most rigorous test I can imagine would be -- maybe someone moving you while you were sleeping into a dark room where you have never been before?)? And can you point to any direction just as easily, or, if asked to point southwest, would you still start from north and work from there?

And do you have to be here to do it?

[Chalky] Can I carry you round with me next time I go orienteering?
I have a pretty good sense of direction and I hang around with a lot of very good navigators, but that's a first for me. I think we need a scan for an overdeveloped pineal gland.

I can always tell where I am and where North is -- I carry a street map and a compass whenever I travel.

[CdM] Just approximate north - nothing too exact! The other directions I would work out in a more conscious way.

[Dan] Interesting. Makes me wonder how bewildering I would find being placed on the north pole with nowhere to point.

[INJ] I don't think you'd want to be burdened with the load :-)