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Which of these forms or genres appeared in the baroque period, but  not  previous periods?

Nstrumental music that supports the main part(s) chamber music 2. a large group of instruments usually including woodwinds, brass, and percussion band 3. music written for small ensembles for an intimate setting accompaniment 4. a person who leads an ensemble conductor 5. an electronic keyboard capable of multiple instrument sounds

Acolor scheme with various hues of the same color is called a/an