was made obligatory throughout the Latin Church (with exceptions for forms of the Liturgy of the Hours that could show they had been in continuous use for at least two hundred years) by Pope Pius V in 1568, matins and lauds were seen as a single canonical hour, with lauds as an appendage to matins. Its matins began, as in the monastic matins, with versicles and the invitatory Psalm 94 (Psalm 95 in the Masoretic text) chanted or recited in the responsorial form, that is to say, by one or more cantors singing one verse, which the choir repeated as a response to the successive verses sung by the cantors. A hymn was then sung. After that introduction, Sunday matins had three sections ("nocturns"), the first with 12 psalms and 3 very short scriptural readings; the second with 3 psalms and 3 equally short patristic readings; and the third with 3 psalms and 3 short extracts from a homily. Matins of feasts of double or semidouble rank had 3 nocturns, each with 3 psalms and 3 readings. On a feast of simple rank, a feria or a vigil day, matins had 12 psalms and 3 readings with no division into nocturns. The psalms used at matins in the Roman Breviary from Sunday to Saturday were Psalms 1−108/109 in consecutive order, omitting a few that were reserved for other canonical hours: Psalms 4, 5, 21/22−25/26, 41/42, 50/51, 53/54, 62/63, 66/67, 89/90−92/93. The consecutive order was not observed for the invitatory psalms, recited every day, and in the matins of feasts. Each reading was followed by a responsory, except the last one, when this was followed by the Te Deum. 20th-century changes Matins underwent profound changes in the 20th century. The first of these changes was the reform of the Roman Breviary by Pope Pius X in 1911, resulting in what Pope Paul VI called "a new Breviary". The reservation of Psalms 1-108/109 to matins and the consecutive order within that group were abandoned, and, apart from the invitatory psalm, which continued in its place at matins every day, no psalm was ordinarily repeated within the same week. To facilitate an even distribution among the days of the week, the longer psalms were divided into shorter portions, as only the very long Psalm 118/119 had been previously. Matins no longer had 18 psalms on Sundays, 12 on ordinary days and 9 on