Figure 7
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PCA biplots of the first two principal components with the sharpened dataset (statistically significant tuning deviation p < 0.05) A: tone pairs with instruments, B: tone pairs including sawtooth waveform. The clusters of data points are indicated with confidence ellipses. Pairs with contrabass clarinet are highlighted with thick line type. For correlations between HDC components (arrows) and the PC axes see Section 3.5.
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