This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Sonata in C Major Wq. 65-47 (H. 248) is one of the particularly captivating works in his keyboard music repertoire. This sonata consists of three movements, each with a distinct tempo and character. The first movement is characterized by a bright and lively melody, reflecting Bachʼs innovative spirit during the transition from the Baroque to the Classical period. The second movement demands deep emotion and delicate expressiveness, offering a quiet inspiration to the listener. The final third movement features a gentle and flowing melody, elegantly concluding the piece. This sonata is an excellent example of Emanuel Bachʼs unique style and musical exploration, and it remains especially popular among his works.