The basic instrument in Mesopotamia and in Egypt was the __________

In brief, what similarities does Robert Schumann's First Symphony share with Schubert's Ninth Symphony and Beethoven's symphonies?

What will be an ideal response?

Characteristic of the music of Debussy is

A. dramatic contrasts of loud and soft. B. the use of shifting harmonies. C. the fixed tonal center. D. All these answers are correct.