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 F Major Wq. 64-1 (H. 7) is one of the particularly captivating works within his keyboard music. This sonatina possesses a bright and lively atmosphere, making it feel approachable to listeners. It is characterized by a flowing melody throughout and harmonies that are cleverly combined. In this work, Bach incorporates the classical style while also showcasing his unique expressiveness. Notably, the changes in tempo and contrasts in dynamics enhance the enjoyment for both performers and audiences. The structure of the sonatina is simple, yet it is crafted with meticulous attention to detail, reflecting the high level of his compositional technique.