Which style of music uses two or more individuals melodic lines at the time

Opera combines music with which of the following

Type the correct answer in the box. spell all words correctly. what did german psychologists develop in the 1920s to describe how people tend to organize visual elements into groups? describe how people tend to organize visual elements into groups, or unified wholes, when applying certain principles.

& hurry! i need this done by 3: 00 pm! changes in artists' art brought about by the inventions of automobiles and trains shows that society influences what? brainliest whoever gets it correct!