On auction is this Liber Usualis with illustrated Rules for Interpretation of the Roman Chant in very sound condition.  Edited by the Benedictines of Solesmes.  Printed in Belgium 1938.

Contents include:

1.   The Kyriale with Cantus ad libitum

2.   The Mass of the Sundays and Feasts including those of double rank throughout the year, with Vespers and Compline for the same.

3.   Prime, Terce, Sext, None, for Sundays and Feasts of the First and Second Class.

4.   Matins of Christmas, Easter, Pentecost, Corpus Christi; Lauds for Feasts of the First Class.

5.   The Litanies: the Mass of Rogatiion Days, Ember Days, Easter and Whitsun weeks; the Vigils of Christmas, Epiphany and Whitsun.

6.   The services of Ash Wednesday, the Triduum of Holy Week and Easter Day.

7.   The principal Votive Masses and the Offices for the Dead.

In the beginning of the book will be found the Common Tones of the Mass and Office.  Chants for special occasion, e.g. the Blessing of the Holy Oils, Ordinations, etc, are included in the Appendix. 

Contains 34 pages of rubrics and rules for interpretation of Gregorian notation, i.e., how to interpret those square notes on a 4-line staff, (in English,) prayers for the ordinary and canon of the mass (Latin) followed by 575 pages of music including the ordinary chants of the mass, common tones of the mass, requiem mass, burial service, proper of the time, common of the saints, votive masses, chants at benediction of the blessed sacrament and more, all in Gregorian notation with Latin text. This beautiful book measures 5" x 7 1/2".  An appendix for the feast of St. Joseph the Workman, May 1, has been inserted at page 1446.

If you have been looking for a really good “Liber,” I think you’ll be pleased with this one.