| (Dean) | 
 Truth.  RP and PP are both acquired skills.  All different aptitudes are found for each skill.  Some learn it instantly ( this 1/10,000 you speak of) while others may take more than a brief period of time to learn it (most everyone else).  It is not a YES or NO skill, it is more of a "how is your sense of pitch perception" skill.  Some people are slower with recognizing pitches while others may hear a 5 notes chord and know exactly what`s going on at the blink of an eye.  Any skill may be learned and developed without limit. 
 
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