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 Sonata in C Major Wq. 113-2 (H. 194) is one of his works for keyboard music that expresses a wide range of emotions. This sonata, while based on the bright and lively key of C major, captivates the audience through unexpected modulations and rhythmic changes. Notably, the improvisational elements characteristic of his music are evident throughout, demanding free expression from the performer. Each movement possesses a distinct atmosphere, offering listeners a fresh impression. The delicate ornamentation and dynamic changes common to Bachʼs works add depth to the music. This sonata, which exudes an innovative spirit beyond the confines of the music of his time, played a significant role in the development of classical music.