It is the purpose of this study to document the decline of modal theory in the seventeenth century and the concurrent emergence of major-minor key theory. Emergence of major-minor key theory in the seventeenth century put an end to virtually unbroken tradition of modal theory which had endured for at least two millennia. Glarean and Zarlino are linked directly to the recognition of major-minor key theory in recent literature. In reality, however, there is not a trace major-minor thinking in Glarean's Dodecachordon. For from trying to isolate the new Aeoliean and Ionian modes, Glarean argues that he is only trying to complete an imperfect system of eight modes by correcting a misunderstanding of the nature of mode as octave species. One of the earliest indications of new direction in modal thinking is found in Zarlino's Istitutioni harmoniche. After acknowledging the existence of twelve different modes, Zarlino goes on to state that all of them could ultimately be broken down into two groups: 1) Those with a major triad on the final or mediant. 2) Those with a minor triad on the final or mediant. Zarlino maintains, furthermore, that it is the presence of major or minor triads on these particular scale degrees which determines the affection of music. During the period transition from modal theory to major-minor key theory, roughly coextension with the seventeenth century, elements and characteristics of modes are often found intermingled with key traits. But to say, in effect, that four of six mode pairs fell into disuse leaving only Aeolien and Ionian, and that these two pairs were identical to minor and major, respectively, is to ignore the historical evidence of seventeenth century music treaties. To say that major and minor descended from Ionian and Aeolian is misleading for two reasons: 1) Those who dealt with two modes and treated them as "modes," i. e., subjected them to transition, generally chose Ionian and Dorian. 2) Those who dealt with two modes, one on C and one on A, treated them as keys from the start and ignored their fortuitous to Ionian and Aeolien respectively. In conclusion, it can be seen that Ionian octave-scale pattern becomes the major mode. It is impossible, however, to provide such a tidy picture for the ancestry of the minor mode because no single scale is used exclusively and not all forms of minor scale (i. e., harmonic and melodic minor) correspond to one of the earlier modes. Yet despire the variability of minor mode, theorists are still able to speak of the major-minor mode since what they consider to be the most essential property of their two modes-the third above the tonic consisting of either a ditone or a tone semitone-is present in the single major scale as well as in each of the diverse forms of the minor scale.

제1장 서론 
제2장 Glarean과 Zarlino의 선법 이론 
2.1. Glarean의 선법이론 
2.2. Zarlino의 선법이론 
제3장 선법 이론의 확장 
3.1. 17세기 이전의 3화음 이론 
3.2. 17세기의 3화음 이론 
제4장 17세기의 선법 이론과 조 이론 
4.1. 17세기 음악의 실제 
4.2. 선법과 조의 개념 
4.3. 음고-조 선법 
4.4. 선법의 양극화 
제5장 결론 
참고문헌 
영문초록

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