[6] Its curious progressions, based on the Dorian mode of the plain-chant (corresponding to a scale of D-minor without accidentals), I have alluded to in a previous chapter.

[7] These indications refer to the arrangement of the score for voices and piano, with French and English text, published by A. Durand & Fils of Paris in 1907. I have indicated in each case, in addition to the page, the measure in which the example begins.

[8] I quote it in the completer and more beautiful form in which it appears on page 57, measures 1-3.

[9] I quote it as it appears in its maturer form on page 125 (measure 3).