what techniques were used in the composition of music or production of sounds in the early part of the 20th century?

Music in the 20th Century changed dramatically

Explanation:  due to the hostile political climate, advances in technology, and huge shifts in style. Many composers, struggling to build any further on the music of generations gone by, reacted against established musical trends, creating exciting new forms and styles.

it is c) 24hrs

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-has naturalistic color-has neutral colors-has color harmony-has variations of colors with shading and reflections(charing cross bridge by andré derain; the copper drinking fountain by jean-baptiste-siméon chardin)the copper drinking fountain by jean-baptiste-siméon chardinchardin and derain used color differently in these paintings.which painting has these characteristics? -has fauve color-has monochromatic colors-has intense, unnatural color-has pure color with no shading(charing cross bridge by andré derain; the copper drinking fountain by jean-baptiste-siméon chardin)charing cross bridge by andré derain