Anyone who claims to have very good relative pitch can test themselves
extensively with GNU Solfege. Even better, try your ears against Lars
Edlund's Modus Novus.
re: Perfect (aka absolute) pitch : I've worked with a guitarist here who
has demonstrable perfect pitch. He was most definitely born with it, he
has no training in music other than his own self-instruction. He's an
excellent mimic, he can play other people's solos note for note, and he
has about 200+ songs memorized, including the non-guitar parts. That
said, he can't improvise worth a damn, he's no writer, and his
musicality extends to only classic rock and other straightforward rock
styles, i.e. he has no interest in other musics.
dp (who swears by Modus Novus and Modus Vetus)
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