Carl Demmer
... that tenor Carl Demmer was possibly Beethoven's first Florestan at the Vienna Court Opera, but failed to please the composer?
... that tenor <b id="mwCgw"><a href="./Carl_Demmer" id="mwCg0" rel="mw:WikiLink" title="Carl Demmer">Carl Demmer</a></b> was possibly Beethoven's first <a href="./Fidelio" id="mwCg4" rel="mw:WikiLink" title="Fidelio">Florestan</a> at the <a href="./Theater_am_Kärntnertor" id="mwCg8" rel="mw:WikiLink" title="Theater am Kärntnertor">Vienna Court Opera</a>, but failed to please the composer?