Consider a musical analogy rather than a tramp steamer analogy.
The overture has moments of soft intervals that form the most of the piece, we hear the English horn solo and faint trumpet and french horn fanfare.
But as the end nears, the tone changes. The volume of instruments build in a growing crescendo.The volume builds and builds, and then there are the cannon and church bells interspersed with strong tympani. The final crescendo unites the orchestra and presents the message of the piece.
Issa, the composer/conductor will direct the crescendo at the proper time
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