The phrase "a group of instruments" is correct and usable in written English.
It can be used when referring to multiple musical instruments or tools that are categorized together.
Example: "The orchestra consisted of a group of instruments, including violins, flutes, and trumpets."
Alternatives: "a collection of instruments" or "a set of instruments."
Protractor, any of a group of instruments used to construct and measure plane angles.
Solo ensembles of virtuoso singers were accompanied by the organ or, possibly, a group of instruments.
One wall is occupied by a grid of 24 color photographs, each depicting an antique scientific instrument -- or a group of instruments -- selected from the collection of the National Museum of Science and Technology in Coimbra, Portugal.
Vivaldi's remaining concerti are either double concerti (including about 25 written for two violins), concerti grossi using three or more soloists, concerti ripieni (string concerti without a soloist), or chamber concerti for a group of instruments without orchestra.
Select an instrument or a group of instruments for which to compose.
A string quartet or a group of brass instruments, for instance, cannot be treated in the same manner as a symphony orchestra.
And after all the musical tumult and rigor, the work ends playfully: a group of string instruments distill into a solo violin playing a high, soft sustained pitch that is taken over by the piccolo until, after a while, a two-note "bye-bye" gesture ends the entire piece.
This paper considers the relationship between manuscripts of Geoffrey Chaucer's Treatise on the astrolabe and a group of surviving instruments related to them.
To correct these measurements for the effects introduced by atmospheric fluctuations, the Observatory contains a group of monitoring instruments to record atmospheric conditions across the detector site, an area exceeding 3000 km2.
"All too often what happens is that you have a group of period-instrument players in a high school auditorium," Mr. Kipnis said.
The cantata, as developed in northern Germany in the 17th century, often relied only upon soloists and a small group of instruments, although the role of the chorus gradually became more important.
