This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Sinfonia in E minor Wq. 178 (H. 653) is a work that showcases his creativity and rich emotional expression. This sinfonia is characterized by the tension and dramatic development of the minor key, which captivates the listener. From the outset, a powerful energy is felt, and the contrasting movements bring variation to the musical flow. Particularly, the changes in dynamics and the diversity of rhythms stand out, leaving a deep impression on the audience. Positioned between the Baroque and Classical periods, this work reflects Emanuel Bachʼs innovative spirit and hints at the influence his music had on later composers.
Wq. 177, written for strings and basso continuo, is almost the same piece as Wq. 178, which is composed for an orchestra including wind instruments.