Write an essay on How did your parents and grandparents experience the world since 1950?

1.How did your parents and grandparents experience the world since 1950? Ask them and comment.
2.What technological advances since 1950 do you think are the most important? Why?
3.Which audio technologies have you experienced? How and when?
4.What commonalities and differences do you hear in non-Western musics? Are they like Western music? How or how not?
5.What are your thoughts about bringing elements of chance into the arts in general and into music in particular? Why?