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 “Allegro in D Major Wq. 116-28 (H. 254)” is a work that shines with his unique expressiveness and creativity. This piece progresses with a bright and lively tempo, filled with energy that captivates the listener. Bach skillfully employs unpredictable modulations and rhythmic changes to offer surprise and freshness to the audience. His music richly depicts emotional fluctuations, leaving a deep impression on the listener. In this work, his characteristic improvisational elements can be felt, presenting a technical challenge for the performer. Emanuel Bachʼs music plays an important role as a bridge to the Classical period, and this Allegro is one such example.