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 B-flat Major Wq. 161-02 (H. 578) is a work that showcases his creativity and rich emotional expression. The first movement is notable for its lively melody and rhythmic variations, possessing a compelling strength that draws the listener in. The following second movement unfolds a beautiful melody imbued with deep emotion, exuding an inner tranquility and meditative atmosphere. The final movement carries a light and bright ambiance, providing a fitting energy to conclude the piece. This sonata embodies the diverse emotional expressions in Emanuel Bachʼs music and his timeless innovation.