I can't seem to find any documentation online regarding how to sing the flex in the responsorial Psalm or chant. I know to go down a minor third or a fifth depending on the mode, but where can I find written documentation that I can share regarding the rules in singing the cross sign?
The flex is sung dropping a whole tone in tones I, IV, VII, and Tonus Peregrinus. The other tones, II, III, V, and VIII drop a minor third.
This, it will be seen, follows rather self-evidently, being most euphonious. A pattern seems to be that those tones whose intonations consist only of step-wise tones are the ones whose flexes drop the major second. Those whose intonations include an interval wider than a second drop a minor third.
(P.S. - None of the flexes drop a fifth! This occurs only at the full stop of the tone for the prophecy or Old Testament reading at mass.)
(P-P.S. - The written documentation you request may be found in Liber Usualis, or in the table of psalm tones in the appendix of St Dunstan's Plainsong Psalter, et al.)
NB: In the restored tone III (reciting on Ti) the flex drops a whole tone to La, following the pattern that Jackson mentions above for tones I, IV, VII, & Tonus Pereg's.
(This would also theoretically be the case if one were to 'restore' the recitation of tone VIII to Ti as well, but no one actually sings it like that, whereas tone III is very often restored to the ancient reciting tone.)
There is one caveat: in the various 'new tones' from Fr. Columba Kelly, Fr. Samuel Weber, and Adam Bartlett, specifically for English texts, it is suggested that the flex be treated as simply a break in the music, remaining on the reciting tone. However, if one is singing in English (or any other language) but to a true Gregorian Tone, the flex is sung as above. I must confess, however, that I often retain the Latin flex formulae even when using the new English tones.
I read somewhere that Balinese gamelin music was not allowed in the NU the second Sunday of every month and on ember days. Can anyone provide documentation of this?
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