Fig. 5: Historical periods of emotion-related adjectives when describing music in English books and in English fictional books from 1800 to 2000 (3-year smoothing).
From: How have music emotions been described in Google books? Historical trends and corpus differences
ALL indicates English books, FIC indicates English fictional books, POS indicates positive adjectives, and NEG indicates negative adjectives. Error bands indicate the standard errors. Source: Own elaboration.
