What two ancient painting media are still in use today?

One of the important changes Beethoven made in sonata form was to

a. add a third theme b. expand the coda c. repeat the development section d. eliminate the contrast between the first and second themes e. None of these choices

A mbria is

a. a drum that has been doctored to produce a unique sound b. an African thumb piano c. a hollow gourd with beads strung around it d. a drum with an hourglass shape c. an instrument that is scratched by a stick