Answer:
After walking away from the art world completely for three years, Phil returned and started using constraints to his advantage. His shaky hand, a result of his art injury, led him to a new style incorporating the shaky lines he couldn't help making.
I would say the answer is playing sadly with feeling. I don't believe that banging violently would produce a sound that makes the piano sound as though it "moans with melody" The other two answer choices wouldn't produce a sound like that either. So playing sadly with feeling seems to be the best choice.
