This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Allegro di Molto in A Major, Wq. 116-36 (H. 310), is a work that richly expresses emotional changes within his keyboard music. This piece, written in a bright and lively A major, imparts joy and energy to the listener. It is characterized by a rapid tempo and a light rhythm, demanding advanced technical skills from the performer. The melody flows smoothly, with occasional contrapuntal elements adding depth to the music. The skillful use of dynamic changes brings a dramatic effect to the music. This work, showcasing Bachʼs creativity, pursues new expressions that transcend the musical boundaries of his time.