The achievement of such a change of register through a sequential progression is a familiar procedure in the music of the "common practice." The signifigant distinction is that where Berg subdivides the registral span into equal, i.e., cyclic, intervals, his tonal predecessors subdivide it, in changing register through sequential transference, into the unequal intervals of the diatonic scale. As I pointed out in my last lecture, however, the qualitative transformation in the language of music which we have experienced in our century has a long prehistory. Beginning with Schubert, we occasionally find normal diatonic functions questioned in changes of key that progress along the intervals of the whole-tone scale, or the diminished-7th chord, or the augmented triad. An even more radical example of a cyclic progression in a tonal composition is...from Wagner (Die Walkure, Act III).
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Page 96George Perle
The crucial and monumental development in the art music of our century has been the qualitative change in the foundational premises of our musical language--the change from a highly chromaticized tonality whose principle functions and operations are still based on a limited selection, the seven notes of the diatonic scale, from the universal set of twelve pitch classes to a scale that comprehends the total pitch-class content of that universal set. We can point to the moment of that change with some precision. It occurs most obviously in the music of Scriabin and the Vienna circle, Schoenberg, Webern, and Berg, in 1909-1910, and very soon afterwards, though less obviously, in the music of Bartok and Stravinsky. I think it is safe to say that nothing of comparable signifigance for music has ever occurred, because the closing of the circle of fifths gives us a symmetrical collection of all twelve pitch classes that eliminates the special structural function of the perfect fifth itself, which has been the basis of every real musical system that we have hitherto known.
George Perle
Our peasant music, naturally, is invariably tonal, if not always in the sense that the inflexible major and minor system is tonal. (An "atonal" folk-music, in my opinion, is unthinkable.) Since we depend upon a tonal basis of this kind in our creative work, it is quite self-evident that our works are quite pronouncedly tonal in type. I must admit, however, that there was a time when I thought I was approaching a species of twelve-tone music. Yet even in works of that period the absolute tonal foundation is unmistakable.
Bela Bartok
An examination of the harmonic techniques out of their context has all too often led to misleading terminology such as 'static' or 'non-functional' as a description of Debussy's harmonic methods. Viewed as a whole, however, the tonal coherence of his music depends upon a carefully calculated and often dramatic interaction of these various harmonic 'types' with each other and with orthodox diatonic harmony. The result is a tonal language, but one which is fundamentally different in concept from classical tonality. The detailed classifications of harmonic events is no longer possible in Debussy's music where the central tonality of a work emerges only through a constant focusing and re-focusing on harmonic types.
Claude Debussy
The folksong collectors Bartok (Hungary) and Plicka (Czechoslovakia) notated the perceived interval deviations with a plus or minus sign (+,-). Older folksong collectors had notated all the intervals in the system of semitones, not observing the finer modifications of intervals. This first gained currency from the phongraph and tape recordings of folk music from various lands....From folksong I learned to perceive melodic intervals a little smaller or greater than those of the semitone-system....In my youth it often happened that the folk singers, who during the intermissions of dance festivals sang songs of "their kind," deviating from the semitone system, demanded that the first violinist of the Wisowitzer Kapelle play "their" melody just as they sang it. Once a tempermental singer threatened to strike the double-bass player with a beer mug if he didn't "play along" with the song, exactly as he sang it.
Alois Haba
There is in souls a sympathy with sounds;
And as the mind is pitched the ear is pleased
With melting airs or martial, brisk, or grave:
Some chord in unison with what we hear
Is touched within us, and the heart replies.
How soft the music of those village bells
Falling at intervals upon the ear
In cadence sweet!William Cowper
Perle, George
Perle, Richard
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