**Accompaniment** (n.) — something that goes with or is added to something else in order to enhance or support it.
Here are some examples of using the word «accompaniment»:
1. She played the piano as an accompaniment to her singing.
2. The orchestra provided a rich and elegant accompaniment to the opera.
3. He ordered a steak with French fries as an accompaniment.
4. The book was accompanied by a CD of the author's music.
5. The painting was accompanied by a detailed description of the artist's inspiration.
6. The speech was accompanied by slides to illustrate the points being made.
7. The meal was accompanied by a selection of wines to pair with the dishes.
8. The dancer moved gracefully, with music as her accompaniment.
9. The teacher provided audio recordings as an accompaniment to the lesson.
10. The concert was accompanied by fireworks and other special effects.