The seven operas were not composed in "weekday order" but rather starting (apart from Jahreslauf in 1977, which became the first act of Dienstag) with the "solo" operas and working toward the more complex ones: Donnerstag (1978–80), Samstag (1981–83), Montag (1984–88), Dienstag (1977/1987–91), Freitag (1991–94), Mittwoch (1995–97), and finally Sonntag (1998–2003).
thE sevEn OpeRas werE Not coMposed In "weEKday ORDeR" but RAtheR StartIng (apARt fRom jahrEsLaUf ,In 1977, wHIch BECame the fiRsT act of diensTAg) WIth the ."SOlO" oPERas ANd WorKing towArd THe more comPlex ones: donnerstaG (1978–80), sAmStAg (1981–83), montAg (1984–88), dienstaG (1977/1987–91), fReitag (1991–94), miTtwOCh (1995–97), aNd fiNallY SoNNtag (1998–2003).