This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs March Wq. 116-45 (H. 319) is one of the works that showcases his unique musical style. This march is characterized by its clear rhythm and powerful melody, which instills a sense of exhilaration in the listener. While employing the traditional form of a march, Bach adds his own expression, providing the audience with a fresh impression. His music often presents unpredictable developments, surprising the listener. This piece is no exception, featuring clever modulations and dynamic changes throughout. Emanuel Bachʼs march is a piece that reflects his creativity and high level of technical skill.