Which type of color is created by mixing two primary colors?

In a painting about the horrors of war an artist shows the ruins a house. what is the subject of the painting

Which accidental cancels all other accidentals?

What was ottaviano petrucci known for? a. he made the first violin. b. he choreographed the first ballet. c. he wrote the song greensleeves, a famous english folk song. d. he printed the first significant collection of polyphonic music.