vorspiel

The Vorspiel of "Siegfried" is expressive of Mime's planning and plotting.
The Complete Opera Book|Gustav Kobb
In the early portion of this vorspiel only the string instruments are used.
The Complete Opera Book|Gustav Kobb
This "Valkyr" Vorspiel is a masterly representation in tone of a storm gathering for its last infuriated onslaught.
The Complete Opera Book|Gustav Kobb
Through themes which are familiar from earlier portions of the work, the Vorspiel rises to a crashing fortissimo.
The Complete Opera Book|Gustav Kobb

Then to the sombre, questioning phrase of the Motive of Fate, the action begins to disclose the significance of this Vorspiel.
The Complete Opera Book|Gustav Kobb