Accompanist (noun)

A person who plays a musical instrument, typically a piano, to accompany a singer or another musician.

Origin:

Derived from the latin ad- ("to") and com- ("together with") and panis ("bread"), in reference to accompanying a singer or player of a musical instrument.

Examples:

1. She was an excellent accompanist and was in high demand for recitals.
2. The accompanist provided the perfect background music for the singer's performance.
3. The accompanist's fingers glided effortlessly over the keys of the piano.
4. The accompanist and singer had worked together for years and had a wonderful musical rapport.
5. The accompanist's skillful playing elevated the performance to a new level.