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 minor Wq. 62-04 (H. 38) is a work that highlights his unique style and emotional expression. The first movement is lively yet introspective, captivating the listener with its charm. The following second movement demands deep emotion and delicate expression, offering a glimpse into Bachʼs inner world. The final third movement is a vibrant and energetic finale, marked by technical prowess and dynamic development. This sonata not only demonstrates Bachʼs creativity and emotional breadth but also serves as a bridge to classical music. It is particularly distinctive among his works and presents a challenge for performers.