symphony

noun4

1. •
   An extended piece of music of sophisticated structure, usually for orchestra.

   • The orchestra performed Beethoven’s Fifth symphony.
2. •
   Harmony in music or colour, or a harmonious combination of elements.

   • She described the city at night as a symphony of lights and sounds.
3. •
   (US, informal) A symphony orchestra.
4. •
   An instrumental introduction or termination to a vocal composition.