This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Rondo in F Major Wq. 57-05 (H. 266) is a work with a unique charm among his keyboard music. This rondo is characterized by its bright and lively atmosphere, featuring melodies that delight the listener. Formally, it adopts the rondo form, with the main theme repeated multiple times, creating a sense of familiarity. In this piece, Bach reflects the musical innovations of his time while demonstrating rich expressiveness. The skillful use of ornamentation and rhythmic changes provides a technical challenge for the performer. Overall, it is a work that brings joy to the audience while showcasing the sophistication of his compositional technique.