Micrologus
The Micrologus ( Guidonis ) de disciplina artis musicae ( to German: short essay ( Guido ) on the rules of musical art ) is one of the most important musiktheroretischen works of the Middle Ages, which was written as a major work of the Benedictine monk Guido of Arezzo about 1025.
The Micrologus dedicated Teodaldo Bishop of Arezzo. He handled the singing and teaching of Gregorian chant and discusses the ways to compose polyphonic music.
Content
The content is divided into the following sections:
- Preface
- Contents
- Chapter I. What has to do the one who wants to learn the music?
- Chapter II What are the notes or what kind and how many?
- Chapter III. About the arrangement of the same on the monochord
- Chapter IV How sixfold way the tones are connected among themselves?
- Chapter V. Of the octave and why there are only seven notes?
- Chapter VI. About the division ratios and their explanation
- Chapter VII About the relationship of sounds after four keys
- Chapter VIII about other family relationships ( the tones) and b and h
- Chapter IX. The similarity of tones, which is a perfect alone in the octave
- Chapter XI. What sound in the song claims the priority and why?
- Chapter XII. About the division of the four keys in eight
- Chapter XIII. About the characteristics of the eight tones, and its scope according to the height and depth
- Chapter XIV over the tropics and the influence of music
- Chapter XV. About the probably added or wohlzufügende symmetry of a melody
- Chapter XVI. About the multiple manifold variety of sounds and sound groups
- Chapter XVII. That all may be brought into song, what is spoken
- Chapter XVIII. About the cross-talk, that is about the rules of organum
- Chapter XIX. A closer look at said cross-talk with examples
- Chapter XX. As the music from the sound of the hammers had been invented (see also: Pythagoras in the forge )