and was hung-up on avoiding Parallel (Consecutive) Fifths . The main periods of white-is-right Classical Music are Medieval (500-1400), Renaissance (1400-1600), Baroque (1600-1750), Classical (1740-1810), Romantic (1810-1910), 20th Cent. (1900-2000), Contemporary (1975-present), and 21st Cent. (2000-present). Pagan Era (till 500 C.E.) The Ancient Greeks considered music a spiritual thang, as in