Question

List and describe two styles of music composition that developed during the twentieth century.

Answer 1

Chance music- music with melodies that are randomly chosen by flipping a coin or through another random way

Electronic music- Music that composers used technology for such as tape recorders or synthesizers to create new sounds

Step-by-step explanation:

Answer 2

Two types of music composition developed during the 20th century:
Rock-N-Roll - an evolution of rhythm and blues which relied heavily on electric instruments. Often dominated by heavy use of electric guitars in particular.
and Rap - a rhyming chant accompanied by rhythmic music. Often associated with derogatory lyrics and misogynistic undertones.