Fig. 3
From: Music is scaled, while speech is not: A cross-cultural analysis
Scaledness values across language categories with regard to their use of lexical tone. Silhouette values are shown for the Hilton-Mehr corpus (left) and the vocal samples of the Ozaki-Savage corpus (right). The languages are classified as either nontonal (●), simple tonal (▼), complex tonal (■), or unknown (▲). The mean for each language type is shown with a gold + and written above. The mean for each utterance type is shown with a dashed line. Speech samples are shown in blue, and song samples in purple. There were no significant differences among language classes that were not driven by utterance type (i.e., speech vs. song).
