This site introduces unknown composer Emanuel Bach (C. P. E. Bach). This English version was translated from Japanese one by ChatGPT.
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.