A
musical setting is a
musical composition that is written on the basis of a
literary work. The literary work is said to be
set, or adapated,
to music. Musical settings include
choral music and other
vocal music. A musical setting is made to particular words, such as poems. By contrast, a musical
arrangement is a musical reconceptualization of a previously composed work, rather than a brand new piece of music. An arrangement often refers to a change in medium or style and can be instrumental, not necessarily vocal music.