Low-level JSON for 91f21e30-2159-4439-ab34-fa0777cbe36d

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        "tuning_diatonic_strength": 0.654068231583,
        "tuning_equal_tempered_deviation": 0.0148205710575,
        "tuning_frequency": 441.527557373,
        "tuning_nontempered_energy_ratio": 0.724470496178
    }
}
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