accompanyist
ac·com·pa·nyist
noun
1.
a person who provides musical accompaniment (usually on a piano)
Origin
From accompany + -ist.
Related words
Word family
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.