This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Wq. 118/6 "Variations on a Romance" is one of his most lyrical and emotionally rich works among his variations. This piece vividly reflects the characteristics of the Empfindsamer Stil, with a diverse array of variations unfolding from a singing romance theme.The romance that serves as the theme possesses a calm and intimate atmosphere, and in the subsequent variations, decorative elements and harmonic ingenuity are added, allowing the music to develop dramatically. Each variation is given a distinct character, with sentimental expressions and lively rhythms appearing alternately, captivating the audience.Particularly in the middle section, modulations and musical tension are employed, highlighting the cleverness of the composition. Performers are required to have delicate expressiveness and technical skill, but at the same time, an interpretation that draws out inner depth is also important. Wq. 118/6 is highly regarded as a piece in Emanuel Bachʼs keyboard works where the harmony of emotion and technique is brilliantly realized.