Why “prolusion” is a great word
PROLUSION — [Noun] An introductory piece of writing or performance, serving as a prelude or preliminary exercise to a more substantial work. From Latin prōlūsiōn-, prōlūsiō, from prōlūdere ("to play beforehand, to prelude"), from prō- ("before") + lūdere ("to play"). Unlike a "preface," which is the formal, settled introduction to a book, or an "overture," which is a structured musical opening, a prolusion is a freestanding, tentative act of preparation—the violinist's scratch of the bow before the symphony, the poet's uncollected verses in a student journal, the actor's vocal warm-up on a darkened stage. It is the quiet rehearsal for the main event, the humble playing at the threshold that makes the real work possible.