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. 51-1 (H. 150) is one of the most refined works among his keyboard compositions. This sonata, while influenced by his father Johann Sebastian Bach, showcases Emanuelʼs own compositional techniques and unique style. The first movement is characterized by a bright and lively melody that captivates the listener. The second movement stands out for its calm and emotionally rich expression, conveying a sense of inner depth. The final Allegro movement is notable for its brisk and rhythmic development, providing a fitting energetic conclusion to the piece. This sonata is an excellent example of Emanuel Bachʼs innovation during the transition to the Classical period, reflecting his musical curiosity and exploration.