instrumentation vs instrument

instrumentation and instrument both are nouns.

Word	Noun	Adjective	Verb	Adverb
instrumentation	Yes	No	No	No
instrument	Yes	No	Yes	No

instrumentation (noun)	instrument (noun)
the act of providing or using the instruments needed for some implementation	the means whereby some act is accomplished
the act of arranging a piece of music for an orchestra and assigning parts to the different musical instruments	a device that requires skill for proper use
an artifact (that is instrumental in accomplishing some end) for accomplishing some end	any of various devices or contrivances that can be used to produce musical tones or sounds
the instruments called for in a musical score or arrangement for a band or orchestra	(law) a document that states some contractual relationship or grants some right
	the semantic role of the entity (usually inanimate) that the agent uses to perform an action or start a process
	a person used by another to gain an end

instrumentation (verb)	instrument (verb)
	address a legal document to
	write an instrumental score for
	equip with instruments for measuring, recording, or controlling