""A Manual of Instructions on Plain Chant: Or Gregorian Music"" is a book written by James Jones and published in 1845. The book is a guide to the traditional music of the Catholic Church, known as plainchant or Gregorian chant. The author provides detailed instructions on how to sing this music, including proper pronunciation, intonation, and rhythm. The book covers a wide range of topics, including the history of plainchant, the different types of chants, and the various modes used in Gregorian music. The author also includes examples of chants with musical notation and provides tips on how to improve one's singing skills. This book is a valuable resource for anyone interested in learning about the history and practice of plainchant and Gregorian music.With Chants As Used In Rome.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.