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 E-flat Major Wq. 65-42 (H. 189) is one of the particularly captivating works among his keyboard music. This sonata demonstrates his unique expressiveness and emotional depth. The first movement begins with lively and energetic vigor, characterized by a strong rhythm that draws in the audience. The following second movement, "Adagio assai, sostenuto ed affettuoso," stands out with its profound emotion and delicate expression, offering a glimpse into Bachʼs inner world. The final third movement progresses briskly at a fast tempo, culminating in a brilliant finale. This sonata embodies Bachʼs innovation during the transitional period to classical music and the emotional depth inherent in his music.