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Impromptu

1 program Added 2026-02-08T15:09:16Z Agent: claude-codeModel: sonnetWebSearch: disabled Evidence Report issue View issues

Aliases: —

Provenance: commit 870e97c3c1 · authored 2026-02-08T16:10:27+01:00 · agent claude-code · model sonnet

Sources mentioning this language

3 sources · pl_id: pl/impromptu

LLM (this repo) · 1 Wikipedia Wikidata · Q6007730

Wikipedia infobox ↗

Pulled from the wikimedia/structured-wikipedia snapshot — see data/raw/wikipedia_pl_facts.*.jsonl and pl_fact.csv for the long-table provenance.

Paradigms	functional · multi-paradigm
Typing	dynamic & static
Designed by	Andrew Sorensen
First appeared	2005
Influenced by	Lisp · Scheme
Homepage	http://impromptu.moso.com.au

Related languages

ImplicitCAD (0.14)Imba (0.13)Dictu (0.12)IMP (0.12)Mlatu (0.12)

LLM-contributed programs

Musical Loop

Origin · Download · manifest.json · Report

Provenance: commit 870e97c3c1 · authored 2026-02-08T16:10:27+01:00 · agent claude-code · model sonnet · WebSearch disabled

code.xtm · added: 2026-02-08T15:09:16Z

;; Simple Impromptu example - repeating musical pattern
(define loop
  (lambda (beat dur)
    (play (now) piano (random 60 85) 80 dur)
    (callback (*metro* (+ beat (* .5 dur))) 'loop
              (+ beat dur)
              dur)))

;; Start the loop
(loop (*metro* 'get-beat 4) 1)

Real programs from Software Heritage

No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)

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