This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Sonatina in G Major Wq. 64-2 (H. 8) is a work that is approachable and has a bright atmosphere among his keyboard music. This sonatina is characterized by its light and flowing melodies, leaving a pleasant impression on the listener. Formally, it has a structure close to the classical sonata form, yet Bachʼs unique expressiveness is evident throughout. In particular, the skillful use of ornamentation and rhythmic changes provides a technical challenge for the performer. Overall, it is a piece that showcases Emanuel Bachʼs creativity and musical sophistication, making it an important work for understanding his musical style.