17-18세기 프랑스 이론서 원전연구

Source Studies of French Treatises in the 17th- and 18th-Centuries: Interpretations of the Rule of the Octave in Figured-bass

This study explores “the rule of the octave” in the 17th and 18th c. treatises. It is significant to examine common features of general usages and gradual change of rules shown in the treatises, and the true entity of tonal characteristics: first, there is a necessary stage shown in the gradual change from hexachord to heptachord by solmization; second, each degree produces a chord which is a peculiar combination of intervals in all twelve tonalities; third, the root positions are presented only over and including 5th, and incomplete chords having 6th are over other scale degrees; fourth, in the case of 7th chord, the tritone is included in the dominant. It is clear that the harmonic relation is not merely “harmonic connection” but “harmonic progression” which is essential in tonal music.