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

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.

He developed the concept of linear perspective, and he had the ability to solve architectural problems using mathematics.