Fig. 4
From: Music is scaled, while speech is not: A cross-cultural analysis
The relationship between scaledness and other scale or singing features. The graphs show the relationship between scaledness and (a) number of tones in a scale, (b) the mean step-size in a scale, (c) the number of different step-sizes in a scale, and (d) the degree of vocal imprecision in production (in cents). The data are based on the Phillips-Brown corpus and the results in Phillips and Brown31 and Brown et al. (submitted). The shaded blue line in each graph is the line of best fit with 95% CIs. ***p < 0.001.
