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RE: The science behind music: an evolutionary mistake, and a human obsession
What do you think, why some intervals (2/3, 3/4, 4/5 ..) are feeling "harmonic" or consonant, but other like tritone (45/32) are dissonant? What is the physiological reason and why humans had got this ability? It is strange that 2/3 sounds better than 45/32. Sometimes tritone is played could be very cool for me.
On the level of vibrations, it has to do mainly with Phi and the way our ear interprets the mathematical relationships between those frequencies. On a psychological level, who knows why we really find one chord more 'pleasant' than another. Of course this can differ between people - I'm also a fan of dissonance a lot of the time!