The one-piece cast-iron frame, a crucial development in the history of the piano, was invented by: select one: a. sebastian erard of paris, france in 1821 b. john broadwood of london, england around 1760 c. bartolomeo cristofori of florence, italy in 1709 d. alpheus babcock of boston, usa in 1825

the answer is counterpoint.

counterpoint definition: "the art or technique of playing a melody or melodies in conjunction with another, according to fixed rules."

counterpoint is present in a lot of baroque music- such as bach (notably his wtc prelude and fugues) and scarlatti, but can also be found in music by mozart, beethoven. it can even be found in music as modern as john williams!

i think in the future, they will get bigger, and more resistant to things like earthquakes. as a result of computer technology, i think the insides of buildings will have better security, and a lot more computer operated things.

just did the journal got a 100%