Is anyone here good at drawing?

The energy applied to cause vibration can be in the form of air pressure a stick, bow, or electricity. true or fasle

Atypical scale usually consists of one of pitches. 1. rhythm 2. octave 3. key 4. series

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.