Academy           of St. Cecilia
      American           Guild of Organists
      Anglican           Online Hymnal
      
      British           Choirs on the Net
      Cyber           Hymnal
      Early           Music--Frequently asked questions
      
      Oremus           Hymnal
      Gregorian           Chant Homepage Princeton University
      Music           of the Mass From           the Catholic Encyclopedia
      
      Royal           School of Church Musicians
      Washington           Bach Consort
      Washington           DC Early Music Groups
Many questions which touch the musical part of the services at Mass belong to the general subject of the reform movement in Church Music. first of all, of the "Kyriale", which contains the Ordinary chants and then of the "Graduale", which comprises all the chants for Mass, but this matter also belongs to a more general treatment.
Argillius Telluricus Eugenius me fecit