What is the pianist in the weary blues doing when he makes the piano moan with melody a. playing poorly though enthusiastically b. humming with the music c. playing sadly with feeling d. banging violently on the keys

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.