Licht some cases—portions of scenes. These modules may be segments (e.g., the eleven instrumental solo sections from "Orchester-Finalisten" from "Mittwoch"), or layers (e.g., the electronic "Oktophonie" layer from the second act of "Dienstag" or the "Klavierstück XIII" version of the first scene of "Samstag" ("Luzifers Traum"), with the bass voice omitted), or a combination of the two (e.g., the vocal sextet "Menschen, hört" and the "Bassetsu-Trio", which are two layers of the "Karusel" subscene from "Michaelion", the fourth scene of "Mittwoch"). There are seven operas, each named for a day of the week, whose subject matter reflects attributes associated in traditional
Determination of the day of the week his collected works in 1927. Gauss' method was applicable to the Gregorian calendar. He numbered the weekdays from 0 to 6 starting with Sunday. He defined the following operation: The weekday of 1 January in year number is where is the remainder after division of by , or modulo . This formula was also converted into graphical and tabular methods for calculating any day of the week by Kraitchik and Schwerdtfeger. Another variation of the above algorithm likewise works with no lookup tables. A slight disadvantage is the unusual month and year counting convention. The formula is where For example,