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 D Major Wq. 62-03 (H. 22) is one of the particularly captivating works among his keyboard music. This sonata demonstrates his innovative style during the transitional period to Classical music. The first movement is characterized by lively, bright melodies and rhythmic motion, providing a powerful opening that draws in the audience. The second movement is more introspective, showcasing rich emotional expression and highlighting Bachʼs delicate musical sensibility. The final third movement returns to a lively tempo, culminating in an energetic and brilliant finale. This sonata is significant in understanding how Bach bridged the Baroque and Classical periods while showcasing his unique musical voice.