“小号”是一种大家非常熟悉的西洋铜管乐器,有着丰富的表现力。但是,许多人并不熟知其“显赫的家史”。为此,文章拟以历史为线,以小号的构造为核,追溯其发展历程。小号的发展历程分为早、中、晚三个时期。一、“小号”发展的早期(远古时代,中世纪以及文 “Squared ” is a western brass instrument that everyone is very familiar with, with rich expression. However, many people are not familiar with its “prominent family history.” Therefore, the article intends to take history as a line, trumpet structure as the core, trace its development process. Trumpet development is divided into early, middle and late three periods. First, “small ” early development (ancient times, the Middle Ages and the text