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.

Han, Sang-Ho. 1999. Directions for Learner-Centered English Education in the 21st Century. Studies in Modern Grammar 17, 191-206. This study proposes that, in the 21st century, English teaching in Korea should be implemented in a learner-centered way, not only in name, but in substance. The author initiates his arguments by attributing the reason for a loose application of learner-centeredness in Korea to its Confucian educational practice deep-rooted in history. He suggests that leaner-centered teaching will assist Korean English teachers to overcome the constraints of traditionalism in the new era. The author gives a brief overview of recent development of English language teaching from the prescientific era to structural linguistic, to cognitive linguistic, and finally to leaner-centered English education. He then conceptualizes learner-centeredness from the four perspectives which, combined together, have given birth to modern western traditions in foreign language education: humanistic movements in general education, communicative approach to curriculum developments, orientation towards individualized instruction, and process-oriented English education. Finally, the author goes into the details of open English education and self-directed learning. He argues that teachers need to have an in-depth awareness of learners` motivations, learning styles and strategies to be able to incorporate the traditional teacher-centered approach into more learner-based teaching. In order for this to be materialized, teachers should seek open-mindedness in their own teaching situations and develop professionally from the traditional status of `teacher as explainer` to `teacher as involver`, and even to `teacher as enabler` in the long run, in an effort to facilitate self-directed English learning.