"I think many of us could cultivate perfect pitch if we had a need for it. There are a couple of radio signature tunes whose pitch I can predict, and I daresay if I needed to, I could probably learn to recognise any note on hearing it."

   I believe this is very true. How many of us will spontaineously begin to sing a song that we are well able to sing, but start in a key somewhat higher or lower than we normally sing in? And then discover we are singing in the key we hear the song in on the CD changer or in the car radio. (Neil Young songs only sound right sung in the upper registers of "R" and thats where "Needle and The Damage Done" always seems to end up for me.) I can see how this could work as nmemonic for devolping perfectish if not perfect pitch.

Don