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 E minor Wq. 59-01 (H. 281) is a work that showcases his unique musical style. The first movement is notable for its rapid and energetic motion, possessing a compelling strength that draws the listener in. The following second movement stands out with its deep emotion and delicate expression, evoking a sense of quiet beauty. The final movement features a light and flowing melody that is pleasing to the ear, balancing the entire piece. This sonata not only demonstrates Emanuel Bachʼs creativity and technical prowess but also allows one to enjoy the diverse expressiveness inherent in his music.