Claim: Responsories for Holy Week is the entirety of Holy Week; until the 1955 reform of the Holy Week ceremonies, the offices were anticipated the evenings before.
Evidence: Responsories for Holy Week (Latin: Responsoria pro hebdomada sancta) are polyphonic settings for the matins responsories, not of the whole of Holy Week, but only of the last three days: Maundy Thursday, Good Friday and Holy Saturday.