Baroque-style flute sonata generated from figured bass prompts

Claude Fable 5.2 - Flute Sonata in A minor. The opening 8 bars use a figured bass by Corelli. After that, it’s all Fable. This is the first time I remember seeing a 9-8 suspension in the basso continuo (third movement, measures 1 and 11, for example). Opus wrote ninths into the solo part, but not into the figured bass. I think this shows a greater confidence in employing dissonance. Prompt 1: “Use this figured bass as the starting point for a flute sonata movement in the Baroque style. Use two staves for the basso continuo and one for the flute. Respond with only the code block. [LilyPond code]” Prompt 2: “Compose an allegro to follow this movement.” Prompt 3: “Compose a largo, the sonata's third movement. The movement after this, the fourth, will be the last.” Unfortunately, Fable ran out of usage before it could finish the fourth movement. (Extra High effort)

— Auggie (@aug5thmusic) Nov 10, 2026