D. Teresa Carreno
She was a renowned Venezuelan pianist, singer, conductor, and composer. She composed short piano pieces by the age of 6 and debuted by the age of 8.
Explanation:
A minor key usually has a lowered or raised third. Just figure out the chord which is fairly easy. then lower or raise the third or middle note of the chord until it sounds minor. Or you can just play the scale with all the flats or sharps in it. either way.
Double variations appear during the Second movement of the Beethoven's Fifth Symphony.
C - Guillaume De Machaut
It was composed before 1365 by this French composer.
Hope this helps!
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