One of my cousins live in Australia and whenever she writes down musical notes, she uses the German notation instead of the standard English. For example, instead of using ♭ (C♭, D♭, E♭, F♭, G♭, A♭, B♭) , she writes "es" (Ces, Des, Es, Fes, Ges, As, B) . She will also write the keys in German (ex. "fis-moll" for f♯-minor) . When I asked her why she writes them that way, she answered that she was instructed by someone who uses the German notation.
So the question is: Do people in Australia use the German notation?