D, because she created it herself.
Answer:
The musicians are actually spontaneously creating a very intricate form of theme and variation; they all know the tune and the role of their instrument. The guitar, piano, bass and drums, while all able to solo, basically provide the rhythm and harmony over which the soloist will create improvised variations.
Explanation:
Vibrating molecules in the air
Fluta, guitarra, el violín, y el acordeón
