Thanks for bringing this issue up. I read about this research, yes. I've also read that basically it's not the language itself, but the exposure to any sort of musical training (including learning a language with tonal differences) that affects the development of perfect pitch in early years (source: http://www.amazon.com/Handbook-Research-Education-Young-Chil...). Thus, I should correct myself on the statement that different cultures are just about the same in their ability to appreciate music. On the other hand I don't think that those differences are somewhat significant, because in both european and asian languages - it's still a language with words, right?