This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Sonatina in E Major, Wq. 63-8 (H. 293), is a work written for solo keyboard, filled with concise yet sophisticated musical elements. The key of E major imparts a bright and radiant atmosphere, characterized by its approachable melodies and lively rhythms. Within this sonatina, one can find elements of the empfindsamer Stil, a style unique to Emanuel Bach, even within its concise form. The harmonic changes and delicate ornamentation of the melodies add depth to the music. Particularly when performed on the clavichord, the subtle dynamics and nuances are expressed, highlighting the musicʼs softness and refined expression. This piece serves as an example of the fusion of accessibility and artistry in Emanuel Bachʼs keyboard music, enjoyable for both beginners and seasoned performers. Its conciseness encapsulates the beauty of sophisticated music, making it an appealing solo piece cherished across generations.