[n] the act of arranging a piece of music
[n] the spatial property of the way in which something is placed; "the arrangement of the furniture"; "the placement of the chairs"
[n] an organized structure for arranging or classifying; "he changed the arrangement of the topics"; "the facts were familiar but it was in the organization of them that he was original"; "he tried to understand their system of classification"
[n] the thing arranged or agreed to; "they made arrangements to meet in Chicago"
[n] a piece of music that has been adapted for performance by a particular set of voices or instruments
[n] an orderly grouping (of things or persons) considered as a unit; the result of arranging; "a flower arrangement"