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. 65-21 (H. 52) is one of the particularly captivating works in his keyboard music. This sonata consists of three movements, each possessing a distinct character. The first movement is lively and bright, filled with an energy that draws the listener in. The following second movement has a calm and introspective nature, expressing deep emotions. The final third movement is characterized by a singing melody, with elegant and flowing music unfolding. This sonata exemplifies Emanuel Bachʼs unique expressiveness and serves as a bridge to the Classical period, showcasing his musical innovation.