When the pianist in “the weary blues” made the piano “moan with melody,” he a. played poorly though enthusiastically. c. played sadly with feeling. b. hummed with the music. d. banged violently on the keys.

The correct answer is c. played sadly with feeling

He played quite the opposite of poorly, he was superb, and he played slower and more emotional tunes, which is also the direct opposite of banging violently since it wouldn't be a moan then nor would it be a melody. He played sad tunes and introduced sad and emotional themes and created a "moan with melody" atmosphere.