Every time I see "tenacles," I smile. It's somehow more accurate misspelled.

62. As We have said before, besides those things that are intimately associated with the Church's sacred liturgy, there are also popular religious hymns which derive their origin from the liturgical chant itself. Most of these are written in the language of the people. Since these are closely related to the mentality and temperament of individual national groups, they differ considerably among themselves according to the character of different races and localities.

63. If hymns of this sort are to bring spiritual fruit and advantage to the Christian people, they must be in full conformity with the doctrine of the Catholic faith. They must also express and explain that doctrine accurately. Likewise they must use plain language and simple melody and must be free from violent and vain excess of words. Despite the fact that they are short and easy, they should manifest a religious dignity and seriousness. When they are fashioned in this way these sacred canticles, born as they are from the most profound depths of the people's soul, deeply move the emotions and spirit and stir up pious sentiments. When they are sung at religious rites by a great crowd of people singing as with one voice, they are powerful in raising the minds of the faithful to higher things.

64. As we have written above, such hymns cannot be used in Solemn High Masses without the express permission of the Holy See. Nevertheless at Masses that are not sung solemnly these hymns can be a powerful aid in keeping the faithful from attending the Holy Sacrifice like dumb and idle spectators. They can help to make the faithful accompany the sacred services both mentally and vocally and to join their own piety to the prayers of the priest. This happens when these hymns are properly adapted to the individual parts of the Mass, as We rejoice to know is being done in many parts of the Catholic world.

65. In rites that are not completely liturgical religious hymns of this kind - when, as We have said, they are endowed with the right qualities - can be of great help in the salutary work of attracting the Christian people and enlightening them, in imbuing them with sincere piety and filling them with holy joy. They can produce these effects not only within churches, but outside of them also, especially on the occasion of pious processions and pilgrimages to shrines and at the time of national or international congresses. They can be especially useful, as experience has shown, in the work of instructing boys and girls in Catholic truth, in societies for youth and in meetings of pious associations.

66. Hence We can do no less than urge you, venerable brethren, to foster and promote diligently popular religious singing of this kind in the dioceses entrusted to you. There is among you no lack of experts in this field to gather hymns of this sort into one collection, where this has not already been done, so that all of the faithful can learn them more easily, memorize them and sing them correctly.

Stop Liturgical Abuse. Now.

No it's not a conspiracy in that a cabal secretly meets and goes "Muahaha! How can we continue to make the liturgy as mawkish, cloying, and as unserious as possible?"