Pedzisa mutsara unotevera: Hertz akatanga kuzivikanwa zvikuru achitungamirira Wagner paMetropolitan Opera muNew York. Zvimwe zvezviratidziro zvaakatungamirira zvakanyorwa nenzira yokuedza nemubhuku weMet Lionel Mapleson pane izvo zvino zvinozivikanwa seMapleson Cylinders uye gare gare zvakabudiswa paLP. Akatanga kuuya kuSan Francisco semutungamiriri weMetropolitan Opera panguva yorwendo rwayo rwa 1906 uye akanga aripo apo guta rakaparadzwa ne
kudengenyeka kwenyika uye moto.