This is a rather short and concise exercise in writing a sonata for cembalo that is playable even for me. It started with a minuet I wrote for a wedding; some improvising on the piano generated the idea for the allegro, and then only a slow movement was missing to have a three movement sonata, a basic structure popular in the 18th century.
The allegro flows happily in 6/8, composed in sonata form; the reprise is slightly shortened so it is not too tedious, but also to have a balanced feel (Exposition: 32 bars; development + reprise 36 bars).
The andante (binary form) provides some contrast by starting out in d minor, modulating to a minor and going back via g minor and F Major to d minor.
The concluding minuet returns to more joyful music with a lively dialogue of left and right hand.
I am considering adding a fast rondo, or composing another sonata concluding with a rondo; not sure about that.