The Mystic Gulf
De mystieke golf
Der mystische Abgrund
Mystická propast
Il Golfo Mistico
El foso místico
Det mystiska diket
The invisible orchestra
het onzichtbare orkest
Das unsichtbare Orchester
Neviditelný orchestr
L'Orchestra invisibile
La orquesta invisible
Den osynliga orkestern
Fossa dell'Orchestra
Sound
Wagner termed the space between the 1st and 2nd proscenium in the Bayreuth Festival Theatre the ‘mystic gulf’. The sound cover hides the orchestra, making it invisible to reinforce the stage illusion by removing a visual distraction.