Which phrase best describes chance music?

melodies based on procedures like the roll of number cubes or a random set of numbers

instrumental music with no connection to a story, poem, or idea

a vocal technique halfway between singing and speaking

a system of composing where all twelve tones of the chromatic scale are put in a
specific order

Ablank is a type of chord that consists of three pitches on consecutive lines or spacesa. monophonyb. chordc. triadd. natural

Witch of the fillowing are two eighth notes equal to

Suppose that you are in a room with 3 doors and a crack in the ceiling for light. that is all. the doors each have a sign on them that says what there is behind them. door #1. a pool of corrosive acid. door #2. a crocodile that hasn't eaten in 8 months. door #3. a solar "oven". a giant lens that focuses all the sunlight at the entrance of the door. you must choose a door, which door do you choose?