Linguistics
Speakers of tonal languages are far more likely to have perfect pitch
In languages like Mandarin and Vietnamese, the pitch you say a syllable at can completely change its meaning. Psychologist Diana Deutsch found that native tonal-language speakers were dramatically more likely to have absolute pitch, the rare ability to name a musical note without a reference tone, than speakers of non-tonal languages with equivalent musical training. She argued that growing up needing precise pitch to understand words trains the same skill music does.