Usage History of 'contraltos'

The following chart shows how frequently 'contraltos' appeared in printed materials over time. For example, the word 'contraltos' occurred 2 times in books in 1715 and 881 times in 2008. From 1715 to 2008, the word 'contraltos' was used a total of 22,601 times in books scanned by Google. See Reference: Google Ngram project.

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