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. 55/1 (H. 244) is a work that stands out for its diverse expressions within his keyboard music. The first movement begins with a lively and energetic tempo that captivates the audience. The following second movement exudes a calm and serene atmosphere, contrasting with its deep emotional expression. The final movement, Allegretto, is characterized by its light and rhythmic motion, bringing the piece to a bright conclusion. This sonata is an excellent example of Bachʼs original style and wide emotional range, reflecting his musical curiosity.