Homonym: prelude (Introduction)
A "prelude" is an introductory section that sets the stage for what follows. In music, it often refers to a short piece that introduces a larger work, such as a sonata or opera. In literature, a prelude can be a brief introduction that provides context or background for a story or poem.
In broader contexts, a prelude can signify any preliminary event or action that leads to a more significant occurrence. For example, a prelude to a major announcement might include hints or discussions that prepare the audience for the main message.