Posting a few notes of stuff I'll talk about tonight.

Online Resources for Liturgical Musicians

English Propers (Ordinary Form)

American Gradual, by Bruce Ford
http://musicasacra.com/books/americangradual1.pdf

Simple Choral Gradual, by Richard Rice
http://musicasacra.com/books/simplechoralgradual.pdf

English Chant Propers, by Fr. Samuel F. Weber
http://www.archstl.org/worship/index.php

English Chant Propers, by Columba Kelly
http://sacredmusicproject.com/

Complete English Propers, by Rev. Paul Abrogast (1964, set to 1962 calendar)
http://www.musicasacra.com/books/completeenglishpropers.pdf

Anglican Use Gradual (Psalmtones with some Gregorian):
http://anglicanhistory.org/music/gradual/gradual.pdf

Psalms (Ordinary Form)

Chabanel Psalms (Corpus Christi Watershed): Greg Evans, Sam Schmitt, Aurelio Porfiri, Brian Michael Page, Richard Rice, Arlene Oost-Zinner, Aristotle Esguerra, Dr. Peter Kwasniewski, Gary Penkala, Bruce Ford, Fr. Jeffrey Keyes, Charles Leferink, and Jeffrey Ostrowski.
http://chabanelpsalms.org

Latin Propers (Ordinary and Extraordinary Form)

Graduale Romanum (many editions) and the Gregorian Missal
http://www.musicasacra.com/pdf/graduale1961.pdf
http://www.musicasacra.com/publications/pdf/graduale1908.pdf (Vatican Gradual)
http://www.musicasacra.com/publications/pdf/graduale1871.pdf (Ratisbon)
http://musicasacra.com/books/gregorianmissal-eng.pdf

Liber Usualis
http://www.musicasacra.com/pdf/liberusualis.pdf

Chants Abreges (Gajard, 1926)
http://www.musicasacra.com/pdf/chantsabreges.pdf

Simplified Graduals and Alleluias (Rice, 2009)
http://musicasacra.com/books/simplifiedgraduale1962.pdf

Liber Brevior (1954)
http://musicasacra.com/books/liberbrevior.pdf

Simple Offertory Verses (Rice, 2009)
http://www.musicasacra.com/pdf/offertoryverses.pdf

Rossini Propers
http://www.musicasacra.com/pdf/rossini.pdf

Ordinary Chants

Kyriale: Many editions, English and Latin