Rorate caeli, video and text in Latin/English

http://www.chantcd.com/lyrics/rorate_caeli_desuper.htm

http://www.chantcd.com/lyrics/dew_from_heavens.htm

recording of Gaudete Sunday introit

http://www.musicasacra.com/media/mp3/a_3_IN_gaudete_in.mp3

Chant notation for Gaudete Sunday Introit

http://www.renegoupil.org/chants/152/files/150/

Proclamation of the birth of Jesus Christ

new school
http://usccb.org/liturgy/christmasproclamation.pdf

old school
http://www.archstl.org/worship/images/stories/sacred_music/christmas/xmas_vig_proc.pdf