Question: Do you prefer sad or happy music?
You should answer which type of music you like more—sad or happy. You can also mention why, for example, your mood, the atmosphere, or personal taste. Giving a reason will make your answer stronger.
Try these synonyms instead of repeating the question:
prefer→like more; enjoy more; lean towards
sad music→melancholic songs; emotional music
happy music→upbeat songs; cheerful music