Then if you listen to the Eb and your thinking its sorta sounds like "nah, nah, nah". Some people say it sorta sounds like "wah, wah, wah". See everyone describes these pitches differently. But you can hear that sort of quality in the Eb. That's its pitch, that you are hearing. Now if you go and play another note, it might sound sort of "nah, nah, nah" too, when it not an Eb. Cause "nah, nah, nah" is a softer sound than if say "dah, dah, dah", which is stronger. Like notes there are more than one soft note in the chromatic scale, and more than one stronger note, etc. But listen to the Eb again and then listen to say an Ab. The Ab is sort of soft and mellow too. But its a different kind of mellow than the Eb. The Ab is alittle stronger than the Eb. You may describe these 2 pitches as: Eb is softer and sedated, and the Ab is just as soft, but its stronger. So if the Eb sounds sorta "nah, nah, nah", the Ab might sound like "neh, neh, neh". See your just opening up the first set of doors, then as you hear more notes some may sound the same. But as you compare them they get more distinctive, and you open more doors. And you keep going til you can hear a difference in all 12 notes. This is how people with perfect pitch can name a pitch by just hearing it, cause these differences are as obvious to the ear as red and blue are different to the eye.
This is how perfect pitch is developed. Yeah it is learned, mozart wasn't born knowing what a C# sounded like before he even heard music. Yeah he may have been born with an amazing ability to hear, just like some people are bored stupid and some become geniuses.
If your interested, I will help you with this. Just ask me if you have a question and I'll try to answer the best I can.
People who say Perfect Pitch is a myth, are saying that Pitches dont exist.
"My whole life is a dark room...ONE BIG DARK ROOM" - a.f.i.