What does arrangement mean in music terms?

Arrangement in music refers to the process of adapting, modifying, or reshaping a musical composition for a specific instrumental or vocal setting, group, or style. It involves taking an existing piece of music and reimagining it for a different context or ensemble. An arranger analyzes the original composition and makes artistic choices to enhance or alter certain elements, such as instrumentation, texture, harmony, and form. The goal is to create a new version of the music that retains its essence while presenting it in a fresh or different arrangement.