The rise of the urban middle class led to
a. a demand for songs and solo piano pieces.
b. a demand for piano transcriptions of operas and orchestral works.
c. the piano becoming a fixture in every middle-class home.
d. all answers are correct.

nope becasue a mosque is a place where muslims pray to god, but the taj mahal was built by (forgive me) someone for his wife. i dont think anyone prays there. also a mosque is for muslims but indians are hindi.

c, d, e, f, g, a, b, and c.

sometimes western music will also use solfege. the names of these are do ra me fa sol la si (or ti) and do.

to indicate a note a half step higher or lower then the original note, you would say c # (for a half a step above c) or bb (for half a step below b)