Responsories for Holy Week Maundy Thursday and Good Friday respectively, rather than on a sequence of names referring to Maundy Thursday, Good Friday and Holy Saturday respectively. The responsories following each lesson of these matins (so also 27) were usually sung, and these are the Tenebrae Responsoria, or the Responsories for Holy Week. The name of a collection of such responsories may also refer to the Holy Triduum, as in Orlande de Lassus' "". Maundy Thursday is the fifth day of the Holy Week (Latin: Feria V or Feria Quinta). In Latin the feast is also indicated as "In Cœna Domini" ("At the meal
Holy Week the liturgical day starts from the evening before a calendar day, the prayers of Palm Sunday begin on the evening of Lazarus' Saturday. Throughout Holy Week, a paschal service is conducted each evening, starting on Sunday night (the eve of Monday), and every morning, up until Easter. These paschal services take place in the middle of the church, not on the altar, because Jesus suffered and was crucified on Golgotha, outside of Jerusalem. The altar is bared of all its coverings and relics. Each day service is divided into 5 "hours"; The First Hour, The Third Hour, The Sixth Hour,