St. Boniface Catholic Church
   Lafayette, IN

CanticaNova Publications
   Charles Town, WV

Chabanel Psalms
   Corpus Christi Watershed

Choral Public Domain Library
   Free Choral Music

The Church Music Association - Musica Sacra
   Auburn, AL

Institute of Sacred Music - Fr. Samuel Weber, O.S.B.
   Archdiocese of St. Louis

Johannes Somary
   Music Director and Founder of Amor Artis

The Liturgical Institute
   Mundelein, IL

The New Liturgical Movement
   Sacred Music and Liturgical Arts

Richard Rice Scores
   Composer of Liturgical Music

Sacred Music Project - Fr. Columba Kelly, O.S.B.
   St. Meinrad Archabbey

Society for the Renewal of the Sacred Liturgy - Adoremus
   St. Louis, MO

St. Cecilia Schola Cantorum
   Auburn, AL

St. Meinrad Liturgical Music
   St. Meinrad, IN

USCCB - Roman Missal
   Washington, DC