Source: G. E. Klemming, ed., Piae Cantiones. S. Trinitas. Iesus Christus. S. Spiritus. S Maria. (1886), p. 11.

Ad cantus laeticiae
nos inuitat hodie
spes et amor patriae coelestis.
Natus est Emanuel,
Quod praedixit Gabriel,
vnde sanctus Daniel est testis.
Ero nos cum gaudio,
nostra simul concio
benedicat Domino iubilo.

Note from Klemming:

"P. C. 33." This refers to Piae Cantiones (1582), p. 33.

Some sources of Latin hymns found in Piae Cantiones:

• Guido Maria Dreves and Clemens Blume, eds., Analecta Hymnica Medii Aevi, Vol. 1.  Cantiones Bohemicae. (Leipzig: O. R. Reisland, 1886).

• Guido Maria Dreves and Clemens Blume, eds., Analecta Hymnica Medii Aevi, Vol. 45b. Cantiones et Motetten des Mittelalters. (Leipzig: O. R. Reisland, 1904).

• G. E. Klemming, ed., Piae Cantiones. S. Trinitas. Iesus Christus. S. Spiritus. S Maria. (1886). Primary source for many scholars, including Dreves, Woodward and others.

• George Ratcliffe Woodward, Piae Cantiones: A Collection of Church & School Song, chiefly Ancient Swedish, originally published in A.D. 1582 by Theodoric Petri of Hyland. (London: Chiswick Press for the Plainsong & Medieval Music Society, 1910).

• Sheet music for some hymns can be found in George Ratcliffe Woodward, The Cowley Carol Book, First & Second Series. Table Of Contents. (London: A. R. Mowbray & Co., Ltd., ca. 1902, 1912).

• Translations of some carols can be found in John Mason Neale and Thomas Helmore, eds., Carols for Christmas-tide (London: Novello, 1853). By the same authors was Carols for Easter-tide (1854).

• Translations and sheet music for some hymns can be found in Charles L. Hutchins, ed., Carols Old and Carols New (Boston: Parish Choir, 1916).

• Scans of individual pages from Piæ Cantiones (in the Adobe PDF format) can be downloaded from Facsimiles Piae Cantiones (http://www.spielleut.de/facs_piae_cantiones.htm; accessed June 15, 2009).