Monteverdi's notation is still in the style of Renaissance music, for example regarding the duration of notes and the absence of bar lines. There is no score, but a partbook for each voice and instrument. The corresponding continuo notes the beginnings of text lines, for example Magnificat, "Et exultauit", "Quia respexit" and "Quia fecit", and the names of instruments, for example cornetto, trombone and flauto. The initials of a title are embellished, such as the M of Magnificat, and in the voice part, the initials of a cantus firmus line begins with a larger letter, e.g. "E t exultauit..." and "Q uia respexit...". Sections where the voice or instrument is silent are marked "Tacet.". The notation poses challenges to editors adopting the current system of notation, which established about a half century after Vespers was written.