To everything there is a season. The spring season officially commenced in the northern hemisphere this past week, the fall season in the southern hemisphere. Parts of the world experience fewer than four seasons a year and may speak instead of a rainy season (or monsoon season), a dry season, a hot season, a cool season. Other kinds of seasons exist in nature: breeding season, mating season, lambing season. There are also human-made seasons: hunting season, basketball season, holiday season, tourist season, an orchestra’s season, and so forth.
Works on seasons (e.g., The changing seasons) are classed in 508.2 Seasons, a subdivision of natural history. There we find a note, “For a specific aspect of seasons, see the aspect.” Thus we find works on Seasons—influence on crime (e.g., The seasonality of crime victimization) classed in 364.22 Influence of physical environment on crime and delinquency, while works on Seasonal affective disorder (e.g., Winter blues: Seasonal affective disorder: What it is and how to overcome it) are classed in 616.8527 Depressive disorder.
While the explicit intent of the note at 508.2 is limited to
meteorological seasons, other kinds of seasons function similarly. For example, works on breeding seasons of
specific animals are classed with the animals; thus, works on breeding seasons of owls, e.g., The breeding season of the American barn owl
(Strix pratincola) in South Carolina, class in 598.97 Owls (because the American barn owl does not approximate the
whole of 598.97, we do not add for South Carolina). Works on hunting seasons are classed
in 799.2 Hunting, e.g., All-season hunting: A guide to early
season, late season and winter hunting in America
On a musical note, Antonio Vivaldi’s The four seasons (Le quattro stagioni), a set of four violin concertos (for solo violin, string quartet, and basso continuo) that capture the character of spring, summer, autumn, and winter, are classed in 787.2186 Violin concertos (built from 787.2 Violin music plus 186 Concerto form from 784.186 as instructed under 784-788). There are other plausible numbers that need to be rejected: The four seasons are not classed in 784.272 Music for solo violin with orchestra (built with 784.2 Full orchestra plus 72 from 787.2 Violin music, as instructed under 784.26–784.28), because the accompanying instruments do not constitute a full orchestra; the work is not classed under 785 Ensembles with only one instrument per part, because of the class-elsewhere note there that reads, “Class works for solo melody instrument with keyboard or other accompaniment in 786–788.”
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