Formal:
* The pianist played a beautiful Mozart sonata with incredible technical skill.
* The composer's latest sonata is a complex and ambitious work, exploring themes of love and loss.
Informal:
* I'm going to listen to a Beethoven sonata while I work on my painting.
* The music teacher assigned us a sonata to practice for next week's recital.
Creative:
* The wind whispered a mournful sonata through the trees, rustling the leaves like a symphony of sadness.
* Her laughter was like a joyous sonata, filling the room with warmth and light.