A composition for voice and piano with poetic text is called O A. lied
O B. sprechstimme
O C. gesamtkunstwerk
O D. none of the above

A. lied

Explanation:

The lied is a term in the German vernacular to describe setting poetry to classical music to create a piece of polyphonic music.

this is a experment where you actully have to do the work like go take some photos in something your interstid in

including the octave, the answer would 8 notes in a major scale with one note being played twice. ex) c major scale includes: c, d, e, f, g, a, b, c

notice that c is played twice

however, if you were to ask me how many different notes are in a major scale- the answer would be 7.