You could make the same argument against unicode. "Why do we need all these weird character sets? The latin alphabet works fine for me, and all the English-sp

You could make the same argument against unicode. "Why do we need all these weird character sets? The latin alphabet works fine for me, and all the English-speakers I know." Notes that deviate from exact 12-EDO aren't actually all that esoteric. Even in traditional western music where almost all musicians think in 12-EDO, it's not all that weird to bend notes a little to bring chords better in tune with themselves.