This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Allegretto in D minor Wq. 113-6 (H. 198) is a work that stands out for its emotional diversity within his keyboard music. This piece, while utilizing the nuances of the minor key, possesses a delicate expressiveness. From the outset, a sense of tension pervades, with melodies that evoke inner conflict and anxiety. In the middle section, contrastingly calm and graceful passages appear, offering the listener a moment of relief. Bachʼs skillful modulation techniques bring unpredictable developments throughout the piece, engaging the audience. Towards the end, the tension rises again, leading to a dramatic climax.