In 1752 Johann Joachim Quantz published the definitive treatise on the playing of which instrument?

Despite visual distinctions denoting separate racial categories and social class status dividing father and son in From Spaniard and Black, Mulatto, how do visual cues connect them?

What will be an ideal response?

In an effort not to alienate audiences, some 20th century composers wrote

A. in an experimental style. B. in a traditional style. C. in a nationalistic style. D. in a non-ethnic style.