This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Andante in G minor Wq. 113-9 (H. 201) is a work that stands out for its emotional depth and expressiveness among his keyboard music. This piece carries a somber atmosphere in G minor, showcasing an introspective yet dramatic development. From the outset, a delicate melody flows, inviting the listener into a quiet sense of awe. In the middle section, contrasting elements are introduced, heightening the tension. Bachʼs skillful harmonic progressions and rhythmic variations evoke a wide range of emotions in the audience. Throughout, the piece reflects his musical curiosity and creativity.