The Instrumentation reference article from the English Wikipedia on 24-Apr-2004
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Instrumentation

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Musical

Instrumentation is the study and practice of writing
music for a musical instrument.

Writing for a specific instrument requires the ability to take into account the special properties of that instrument such as the following:

See orchestration for a description of the difference between instrumentation, orchestration and arrangement.

Engineering

Instrumentation is the study of instruments used by engineers such as oscilliscopes.

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