45th Vienna State Opera anniversary

Ms. Gruberova's 45th Vienna State Opera anniversary was celebrated with a gala concert on 7-Feb-2015, exactly 45 years after her debut.
(Her debut was on 7-Feb-1970, as Königin der Nacht.)
The ovations after the concert lasted for more than 45 minutes.
 
From the Facebook of the Vienna State Opera
 
The concert was streamed live
 
Interview (Kurier) Czech translation
 
Other interview (Prolog magazine of the Vienna State Opera)
 
Article (oe24.at)
 
The February 2015 newsletter of the Friends of the Vienna State Opera also mentions the anniversary
 
Article in Der Neue Merker
 
Article (APA / Salzburger Nachrichten)
 
Opera Slovakia about the anniversary
 
Another Slovak article on the occasion of the anniversary, with detailed list of roles in Vienna
 
Article in Kleine Zeitung Steiermark, calling E.G. "Frau Koloraturova"
 
Drawing by Benedikt Kobel
 
Picture galleries of the gala: 1 2 (blog entry) 3 (search for 'Gruberova Staatsoper') 4 (Japanese blog entry)
 
Fans' videos of the applause and speeches: 1 2 3
 
Reviews of the gala (in German): 1 (with interview) 2 3 4 5 6 7 Czech translation of the Kurier & Die Presse reviews  
 

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"Fliers" and badges made by fans

 
10,000 "fliers" (papers with picture and words of tribute) were thrown from the upper boxes, and about 100 badges were distributed among fans. The fliers were designed and printed by Reinhard Pinter, the badges were designed and manufactured by Katalin Szabó.
 

 

 
There was a big banner (designed & painted by Chris Schneider) saying "EDITA - IHR GESANG IST FÜR UNS GESCHENK".