This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Allegro in D minor Wq. 113-11 (H. 203) is a work that richly expresses emotional fluctuations within his keyboard music. This piece is characterized by its rapid tempo and powerful rhythm, creating a sense of tension for the listener. The dramatic melody that unfolds from the beginning reflects the influence of Baroque music while also suggesting a transition to the Classical era. The skillful combination of contrapuntal elements and harmonic changes adds depth to the music. In the middle section, a momentary brightness appears within the minor key, followed by a renewed sense of tension, creating an impressive structure. This work, showcasing Emanuel Bachʼs unique expressiveness, reflects his musical curiosity and exploration.