Am i cute?

be honest please

Explain briefly why it's to choose a chord progression before developing the harmony.

The earliest type of phonograph was recorded sound on a a. tape. b. metal cylinder. c. wax cylinder. d. vinyl disk.

Above is a picture of one of the most famous discoveries ever to be found in china. answer the following questions: - what does the picture show? - when and where was it discover? - who discovered it and what was he doing when he/she discovered it?