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. 65/40 (H. 177) is one of the particularly captivating works among his keyboard music. This sonata consists of three movements, each possessing a distinct character. 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 calm and emotionally rich, showcasing Bachʼs delicate expressiveness. The final third movement returns to a lively tempo, culminating in an energetic and brilliant finale. This sonata exemplifies Emanuel Bachʼs unique style and his innovative role as a bridge to classical music.