4. while listening to the music being played with the music teacher and her speaker clear notice that those are sounds weird in the environment in when the music and serious that heard the sounds only you once the music is an example of _______.

A.avant-garde
B.chance music
C.jazz music
D.sounds music

5. martha was able to record the sounds she heard from her environment using her mobile phone and able to arrange it. what music style of the 20th century she portrayed?

A.chance music
B.electronic music
C.expressionism
D.impressionism​