The period of music beginning approximately in 1900, and immediately following the period of Romantic music. Modern music is notably contrasted with Romantic style in the use of dissonance, experimentation with now chordal variety, and atonality. The mathematical certainty of four-measure phrasing found in music of the past is not in style during the Modern period. Frequent changes in time signature and the use of complicated meter are common. Trends in the twelve-tone system and the use of electronic music are significant developments in the Modern period.
Modern period. (2012). In M. C. Thomsett, Musical terms, symbols, and theory: an illustrated dictionary. McFarland. Credo Reference: https://ezproxy.southern.edu/login?url=https://search.credoreference.com/content/entry/mcfmusic/modern_period/0?institutionId=2258
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