Music .

an elaborate instrumental composition in three or more movements, similar in form to a sonata but written for an orchestra and usually of far grander proportions and more varied elements.

an instrumental passage occurring in a vocal composition, or between vocal movements in a composition.

an instrumental piece, often in several movements, forming the overture to an opera or the like.

symphony orchestra.

a concert performed by a symphony orchestra.

anything characterized by a harmonious combination of elements, esp. an effective combination of colors.

harmony of sounds.

Archaic . agreement; concord.

noun

accord , concert , concord , tune , band , harmony , music , orchestra