An advocate or a student of instrumentalism.
A performer on a keyboard instrument
One who composes, conducts, or performs music, especially instrumental music.
Find another word for organist. In this page you can discover 15 synonyms, antonyms, idiomatic expressions, and related words for organist, like: instrumentalist, keyboardist, organ-player, musician, choirmaster, chorister, accompanist, harpsichordist, oboist, pianist and sub-organist.