Translation guide
A prelude is an introductory event, action, or piece of music that comes before something more important. In Japanese, the best word depends on whether you mean a musical prelude, a figurative lead-up, or a formal preface.
A short piece of music that introduces a larger work, or an instrumental introduction to an opera, oratorio, etc.
Standard term for a musical prelude, especially as an independent piece or the first movement of a suite.
I play a Bach prelude.
Loanword from English/French, used in classical music contexts, often for Romantic or Impressionist pieces.
Debussy's preludes are beautiful.
Overture; sometimes used for a prelude to an opera or oratorio, but more commonly means overture.
序曲 usually translates as 'overture', not 'prelude'. Use only when the context clearly matches.
The opera's overture began.
An event or action that serves as an introduction to something more important.
A sign or harbinger of something to come; often used for natural phenomena or events.
That small earthquake was a prelude to the big one.
Prologue or opening chapter; can be used figuratively for the beginning of an era or story.
Literally 'prelude' in a musical sense, but can be used metaphorically for an introductory phase.
Figurative use is less common and may sound poetic or literary.
A preliminary part of a book, speech, or event that leads into the main subject.
前触れ implies a natural or ominous sign, while 序章 suggests a structured beginning like a story or historical phase. Use 前触れ for harbingers and 序章 for narrative-like preludes.
プレリュード is only for music. Using it for a figurative prelude sounds unnatural. Stick to 前触れ or 序章 for non-musical contexts.
This incident was merely a prelude to the war.
それは悲劇の前奏だった。
It was a prelude to tragedy.
前置きは抜きにして本題に入りましょう。
Let's skip the prelude and get to the main topic.