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 G Major Wq. 62-02 (H. 20) is one of the particularly captivating works among his keyboard music. This sonata consists of three movements, each possessing a distinct character. The first movement is characterized by lively and bright melodies, showcasing Bachʼs innovation during the transition from the Baroque to the Classical period. The second movement has a calm and introspective atmosphere, with deep emotional expression that is striking. The third movement features beautifully lyrical melodies that captivate the listener. This sonata is an excellent example of Emanuel Bachʼs unique style and the richness of emotion he infused into his music. His works had a significant influence on later Classical music.