Who was Don Kirshner?

Which statement best describes the manuscripts containing music by Guillaume de Machaut?

a) Machaut used abstract shapes, such as a harp and a circle, to notate his works b) Machaut rarely associated his name with his music and his works are plagued with attribution problems c) Machaut's works are primarily found in the Squarcialupi Codex d) Machaut carefully supervised the preparation of six manuscripts containing his works

All jazz rhythms came from Africa.

Answer the following statement true (T) or false (F)