The way that images appear to be moving in films and videos is actually an optical illusion.

Which of the following statements is not true?

a. Jazz developed as "serious" concert music b. Early jazz developed as an outgrowth of music played for dancing c. Early jazz musicians improvised parts to make the band sound larger d. There was great demand for musical entertainment in New Orleans inthe early twentieth century

The heart-shaped pick up pattern in microphones are:

a. boom. b. bi-directional. c. cardioid. d. omni.