This site introduces unknown composer Emanuel Bach (C. P. E. Bach). This English version was translated from Japanese one by ChatGPT.
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Sonata in F Major Wq. 56-04 (H. 269) is a work with a unique charm among his keyboard music. The first movement is characterized by a gentle and flowing melody, inviting the listener into an elegant atmosphere. The following second movement is full of lively tempo, with technical passages unfolding one after another, testing the performerʼs skill. This sonata fully showcases Bachʼs creativity and expressiveness, allowing one to feel the wide range of emotions in his music. In particular, it offers a glimpse into the musical changes during the transition to the Classical period, reflecting the musical trends of the time.