Helpful first violinist?

• One who plays without vocals
• Helpful to first violinist for example
• Fan must start in line to see player
• Tuba player, e.g
• Tuba player, e.g.

Wiktionary Word definitions in Wiktionary
n. One who plays a musical instrument, as distinguished from a vocalist

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Instrumentalism \In`stru*men"tal*ism\, n. (Philos.) The view that the sanction of truth is its utility, or that truth is genuine only in so far as it is a valuable instrument. -- In`stru*men"tal*ist , n. Instrumentalism views truth as simply the value belonging ...

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ All the instrumentalists, of course, weave solos through this fabric of sustained notes, but the focal point is Threadgill. ▪ First, the ballet livrets of this period treat the instrumentalists as members of discrete groups. ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1823, from instrumental in the musical sense + -ist .