instrumentation

Short definition from Wiktionary

Noun

1. 1
   The act of using or adapting as an instrument; a series or combination of instruments.
2. 2
   The arrangement of a musical composition for performance by a number of different instruments; instrumental composition; composition for an orchestra or military band.
3. 3
   The act or manner of playing upon musical instruments; performance.
4. 4
   On a vehicle, dashboard gauges monitoring engine functions and performance, along with other essential functions.
5. 5
   The dynamic analysis of a program's performance and behaviour, usually by injecting profiling code into it.