A demonstration of the April APL compiler (code hosted at https://github.com/phantomics/april) will be presented at the 2022 European Lisp Symposium. April compiles a subset of the APL language into Common Lisp, allowing APL’s terse, efficient syntax to be leveraged for array processing and mathematical operations within a Common Lisp program. This presentation will cover April’s basic syntax, its use cases and its architecture, leading into a broader discussion of language design philosophy