This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs polonaises are among the works that showcase his unique musical style. In this piece, the characteristic 3/4 rhythm of the polonaise is employed, intertwining elegance and strength. His polonaises often include unexpected modulations and bold harmonic progressions, surprising the listener. Additionally, they are rich in ornamentation and improvisational elements, demanding high technical skill and expressiveness from the performer. Emanuel Bach excelled at expressing a wide range of emotions through music, and this polonaise is no exception. His works played a crucial role as a bridge to classical music, significantly influencing later composers.
For an overview of Wq. 116 as a whole, refer to Character Pieces Wq. 116 .