This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Rondo in E minor, Wq. 66 (H. 272), is one of his works that showcases his expressive emotional range. This rondo possesses a unique tension and dramatic development that captivates the listener. The E minor key provides a shaded resonance that imbues the entire piece with deep emotion. The theme is delicate yet powerful, revealing new expressions with each variation. In the middle section, contrasting brightness and lightness appear, maintaining the overall balance. Emanuel Bachʼs innovative harmonic progressions and rhythmic changes offer the audience a fresh surprise. This piece embodies the breadth and depth of emotion in his music.