Following his presentation at ICSC 2026, Hlöðver Sigurðsson has released Make A Lisp for Csound 0.3.0, a Clojure-style Lisp interpreter written in Csound 7.
The Make A Lisp Showcase lets you try it in your browser through ten short, commented lessons covering values, collections, functions, immutable data, atoms and macros. Press Play and follow the output in the Console.
Interactive Lisp Repl
uses Csound’s readline opcode. Press Play, then enter Lisp at the lisp>
prompt in the Console. Try (+ 2 3). Definitions stay between inputs, so you
can define a function or change an atom and use it in the next expression.
Both projects include a README and the interpreter. The source code and 0.3.0 release are available on GitHub.