[1] In 1923, during her studies, she became organist at the Fürth church, in 1932 also choral conductor.

[2] She was honoured in 1966 with the Schulmusikpreis of Fürth, and in 1971 with the Order of Merit of the Federal Republic of Germany.

[1] Fronmüller composed sacred cantatas, motets and songs, as well as chamber music.

Her chorale cantatas for choir and brass became popular and were performed often.

Her melody to Philipp Spitta's 1827 hymn "Freuet euch der schönen Erde" appears in the Protestant hymnal Evangelisches Gesangbuch as EG 510,[1] as one of few melodies by a woman.