Meaning: The person who sang bent their head or body as a sign of respect and formed a smile with their mouth in a kind and polite manner.
Choice of Words: The word "singer" refers to a person who sings. "Took a bow" means to bend the head or body as a sign of respect or gratitude. "Smiled" means to form a smile with the mouth. "Graciously" means in a kind and polite manner.