"Gracefully" is an adverb that describes how something is done. It doesn't have comparative or superlative forms in the traditional sense. However, you could use adverbs like "more gracefully" or "most gracefully" to emphasize the degree of gracefulness.
Here's how you might use these words:
* Comparative: "Her performance was more graceful than the previous one."
* Superlative: "She danced most gracefully, captivating the audience."
To describe something as being both "memorable" and "graceful," you could use phrases like:
* "A memorably graceful performance"
* "A performance that was both memorable and graceful"
* "A performance that was gracefully memorable"