Born in Regensburg, Sailer initially lived and worked in Ansbach as a kindergarten teacher after her marriage.
[3] The production, with Fritz Wunderlich in the leading role, was staged by Günther Rennert and conducted by the composer.
[3] Sailer performed the part also at the Vienna State Opera, conducted by Michael Gielen.
In May 1966 she sang in the premiere of Hermann Reutter's Der Tod des Empedokles, again at the Schwetzingen Festival.
She recorded his Mass in B minor with Hans Grischkat, and with Fritz Werner more cantatas and the St John Passion.