Antiquity (and their associated deities) from which the day-names are derived: Monday = The Moon Tuesday = Mars Wednesday = Mercury Thursday = Jupiter Friday = Venus Saturday = Saturn Sunday = The Sun Stockhausen sought to fashion the subjects for each opera through absorption in the traditions of this planet and immersion into the intuitive meaning of each day of the week—meanings of which most people are not aware. The cycle has neither a "beginning" nor an "ending"; like the days of the week, each opera leads to the next one, so that the conflict of Tuesday is followed by the reconciliation of Wednesday, and the mystical union of Sunday prepares the way for the new life of Monday. "In this way there is neither end nor beginning to the week. It is an eternal spiral". Each opera is composed from an elaborated form of the corresponding day-segment of the superformula, made by superimposing one or more complete lines from the superformula, compressed to the length of the day-segment. These are named for the day in question (e.g., Mittwoch-Formel.) The separate acts and scenes often involve further superimpositions of formula material. For example, "Luzifers Traum", the first scene of Samstag, has a total of five layers. Each day is also assigned a principal (or "exoteric") colour, as well as one or more secondary (or "esoteric") colours. Monday (1984–1988) Montag, composed between 1984 and 1988, is dedicated to Eve. It features an orchestra with synthesizers (called a "modern orchestra" by Stockhausen), backing 21 performers (14 voices, 6 instruments and an actor), as well as adult and children's choirs. The opera is in three acts, framed by a "greeting" and a "farewell." (This framing applies, with variation, to each opera in the cycle: a "greeting" either in the foyer of the opera house or in the auditorium, and a "farewell" after the performance, played either in the auditorium or outside the theater.) Mondays exoteric colour is bright green; its esoteric colours are opal and silver. The scenes and subscenes are as follows: Montags-Gruß (Monday's Greeting) Act 1: Evas Erstgeburt (Eve's First Birth-giving) scene 1: In Hoffnung (Expecting) scene 2: Heinzelmännchen scene 3: Geburts-Arien (Birth Arias) scene 4: Knaben-Geschrei (Boys' Hullaballoo) scene 5: Luzifers Zorn (Lucifer's Fury) scene 6: Das große Geweine (The Great Weeping) Act 2: Evas Zweitgeburt (Eve's Second Birth-giving) scene 1: Mädchenprozession (Girls' Prozession) scene 2: Befruchtung mit Klavierstück—Wiedergeburt