means seven elements of Metatheatrics. The seven elements are: (1) Frames, (2) Themes, (3) Dialogs, (4) Characters, (5) Rhythms, (6) Plots, and (7) Spectacles.
A septet is a formation containing exactly seven members. It is commonly associated with musical groups, but can be applied to any situation where seven similar or related objects are considered a single unit.
The Septet in E flat major, Opus 20, by Ludwig van Beethoven, was first performed in 1800 and published in 1802. It is scored for clarinet, horn, bassoon, violin, viola, cello, and contrabass.