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 G minor Wq. 70/6 (H. 87) is a work that stands out in his keyboard music for its wide range of emotions and expressiveness. This sonata is characterized by sudden emotional shifts and unpredictable developments that surprise the listener. From the outset, a tense melody unfolds, followed by contrasting calm passages. In the middle section, dramatic modulations and rhythmic changes captivate the audience. The final movement brings back a powerful expression, maintaining a sense of unity throughout while leaving a deep impression on the listener. This sonata demonstrates Emanuel Bachʼs creativity and high level of technical skill.