This site introduces unknown Emanuel Bach (C. P. E. Bach).
ChatGPT4o writes as follows (please note that it may not be accurate):
Emanuel Bachʼs Württemberg Sonata No. 1 Wq. 49-1 (H. 30) is one of a collection of six sonatas dedicated to Duke Carl Eugen of Württemberg in 1744. This work prominently features the characteristics of Emanuel Bachʼs Empfindsamer Stil (sensitive style). The first movement progresses at a gentle tempo, adopting the sonata form, and is characterized by its elegant and refined melody. The second movement possesses an introspective and lyrical nature, with delicate harmonies and ornamentations that evoke deep emotional expression. The third movement is a fast-paced finale, distinguished by its clear rhythm and technical passages. This sonata combines clarity of form with emotional richness and is particularly captivating when performed on the [clavichord,] harpsichord, or fortepiano. It is regarded as one of the works in Bachʼs keyboard music that combines dramatic elements with subtlety.