Extempore (software)

Extempore is a live coding environment focused on real-time audiovisual software development. It is designed to accommodate the demands of cyber-physical computing.^[2] Extempore consists of two integrated languages, Scheme (with extensions) and Extempore Language. It uses the LLVM cross-language compiler to achieve performant digital signal processing and related low-level features, on-the-fly.^{[citation needed]}

Extempore

Paradigm	Functional, multi-paradigm
Designed by	Andrew Sorensen
First appeared	2011; 14 years ago (2011)
Stable release	0.8.9[1] / 6 May 2021; 4 years ago (6 May 2021)
Typing discipline	Dynamic & static
OS	Linux, Mac OS X, Windows
License	3-clause BSD
Website	github.com/digego/extempore
Influenced by
Lisp Impromptu Scheme

Relationship to Impromptu

Extempore shares the use of Scheme syntax, real-time audiovisual emphasis and lead developer Andrew Sorensen with the older and related project Impromptu. It runs under both Linux and Mac OS X. The bindings to Apple libraries are absent, but the environment can interface with dynamic libraries.^[3]