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. 62-20 (H. 120) is one of the most captivating works among his keyboard music. This sonata showcases his unique expressiveness and emotional richness. The first movement is characterized by a bright and lively melody, providing a powerful opening that draws the listener in. The following second movement is notable for its singing melody, expressing deep emotions. The final third movement offers a light and rhythmic finale, bringing the piece to a close. This sonata reflects Emanuel Bachʼs innovative style and the influence he had on the development of classical music. His music served as an important bridge during the transition from the Baroque to the Classical period.