Part of Frescobaldi's 'Il secondo libro di toccate', this work features chromaticism and dissonances that were highly experimental for the early 17th century. It represents a masterclass in Baroque counterpoint and keyboard experimentation.
The challenge is managing the complex, often harsh harmonic resolutions while maintaining a clear, steady pulse.
Comparable difficulty and character — good candidates for what to learn next.
Capriccio di Durezze, F 4.09 is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of Capriccio di Durezze, F 4.09 lasts about 5 minutes.
Capriccio di Durezze, F 4.09 is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include Bergamasca by Girolamo Frescobaldi, Capriccio cromatico con ligature al contrario, F 4.08 by Girolamo Frescobaldi, Capriccio di obligo di cantare la quinta parte, F 4.11 by Girolamo Frescobaldi — see the full similar-pieces list on this page.