Definition: Number (or section) based on showing the musicians playing and the various instruments. Numbers starring famous bands, big bands with very visual features. Not for any number where a band is performing. Includes numbers showing instruments specifically as giant stylised objects whose very raison d’être is to show instruments. Valid for any band, even small groups of musicians or exotic bands. But do not use if there are just a few instruments shortly visible.
Example: See http://revuemusicaleoicrm.org/vol5-n1-numeros-instruments/