Q. But Rhythm, Form?
A. Form is Rhythm, and Rhythm is time.
Q. Let us begin then with the keys, you speak of two only—major and minor—but I have heard something of Ambroseanic, Gregoryanic, Glareanic and Greek keys, wherein are composed the beautiful and sublime compositions of Palestrina, Allegri, Lotti, that are performed annually during Passion-week in the church of St. Peter, at Rome.
A. Well, if you like to go so far back, we will speak about Ambrose, Gregory, Glareanus, but there are no such things as “Greek” keys.
The knowledge we have of the music of the Greeks, is too slight and imperfect to enable us to assert positively anything concerning it; and as nothing important or necessary to modern art is involved, we may be content to let the music of the ancients rest in the obscurity which surrounds it.
With the first Christians, who hated everything which came from the temples of the heathens, arose our music.
Their religious songs were a production of the new soul which came into them with Jesus Christ, and are the foundation of our great edifice of art, as it now exists. In the year 385, Saint Ambrose introduced four keys, D, E, F, G; Pope Gregory, in 597, added four others to these, and named the four of Ambrose, “authentic moods,” and his four, which began on every fifth of the first four, “plagalic.” In these eight keys, without sharps or flats, are composed the liturgic songs of the Roman church, called “Gregorian chants.” They are written in notes of equal value, without Rhythm or Metre, and are sung in unison with loud voice. Glareanus added to those eight keys, two more, A and C, with their plagal moods. To distinguish more clearly, some one called the key beginning with “D,” Doric, “E,” Phrygic, “F,” Lydic, “G,” Mixolydic, “A,” Æolic, and “B,” Tonic. These names are all we have borrowed from Greece.
Palestrina, the preserver of our art, wrote his compositions in these keys, and for the highest purity of harmony, rhythmical beauty, sublime simplicity, and deep religious feeling, his works are still unrivalled.
Q. Why don’t you compose in the old keys and in Palestrina’s style?
A. They are used sometimes by Handel in his Oratorios, by Sebastian Bach in his fugues for organ and piano. Later, Beethoven has written an Andante in the Lydic mood in his string-quartette (A minor). I myself have composed the first chorus of Vinvela, in the Mixolydic mood, and in Comala, the song to the moon, in the Doric mood; but Handel, Bach, Beethoven, and myself, have written in our own style, and never imitated Palestrina’s. Men in similar situations, only, have similar ideas. All older works of music utter a language which we yet understand, but cannot speak. We feel its deep innermost accents, but we cannot tune the chords of our soul to that pitch which harmonizes in every respect with that feeling. Palestrina’s music sounds like that of another world; it is all quite simple; mostly common chords, here and there only a chord of the sixth; and always an irresistible charm.