Sounds like " Fingertips, Part II" - you have to check that out (Stevie Wonder, mid 60's). Also, as the keyboard player, you have the ability to hit a few 'random' notes that will help you identify what the key is. I've heard keyboard and guitar players do this very skillfully and no one ever knew they were searching for the key.

I think what you want to do is paractically impossible unless you have perfect or near perfect pitch, which we've already discussed. Good luck.

[This message has been edited by cassp (edited 10-15-2004).]