This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Sonata Wq. 116-32 (H. 306) is a work that stands out for its wide range of emotions and expressiveness within his keyboard music. This sonata, while influenced by his father Johann Sebastian Bach, establishes its own unique style. Particularly, the unpredictable modulations and rhythmic changes captivate the listener. Each movement possesses a different atmosphere, evoking a variety of emotions in the audience. The improvisational elements in his music allow performers the freedom of interpretation, bringing new discoveries with each performance. This sonata possesses an expressiveness that transcends the boundaries of classical music and influenced later composers.