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 B-flat Major Wq. 114-02 (H. 229) is a work that stands out for its wide range of emotions within his keyboard music. This Andante, while calm, possesses an inner depth that quietly moves the listener. The melody progresses gracefully and fluidly, with harmonic changes creating subtle nuances. Ornamentation and rhythmic variations are skillfully employed, adding a lively expression to the music. The improvisational elements common in Bachʼs works are also felt, allowing performers room for free interpretation. Overall, it is a piece that invites the listener into a world of pleasant tranquility and deep reflection.