Perfect Pitch has some different Definitions: There are
different levels of perfect pitch and absolute pitch. They are
all about being able to either identify or generate (i.e. sing)
notes without a recent reference. People's ability range from
being able to guess right some of the time, to instantly telling
you which note is not being played when someone bangs 11 out of
12 notes as a cluster on the piano. I emphasized "recent"
reference, because in many ways what most people call perfect
pitch in a way is just relative pitch, except you are using
relative pitches they you haven't heard even that day.
Generating Notes without Reference: I'm going to focus on the
ability to be able to sing a note when you first wake up. This
is often a good starting point for people that "don't have
perfect pitch". The reason is, and here is the kicker, many
people do and they just don't know it. The way you can discover
this is by first thing in the morning, try think of a piece you
were playing the day before. Think of what