The "transitus irregularis" is described, for example, in the method fo
figured bass said to be written by W. A. Mozart (which I suppose to have an
english translation). Well, that book names it "transitus irregularem" but
this is not a correct Latin...
It is also cited, with a few examples, in an Italian book about figured
bass. I'm very sorry but I don't know the english language literature on the
subject.
The transitus irregularis is used in ancient Italian literature (not very
often: you know that the Italian figured bass uses very few symbols) and in
German one (I'm not at home so I can not cite any author... tomorrow if you
are interested).
The meaning is very simple: suppose you have a "d" with transitus
irregularis followed by "c" numbered "2". You should execute on the first
"d" the harmonization of the "c" numberd "2", that is you anticipate on "d"
the harmony of the following "c". Just the opposite of the continuation of
the prior harmony over a new bass note.
It has more than one possible symbol (written under the note at the height
of the numbers):
1 - nothing (alas: this is an Italian use...)
2 - a circle
3 - an ancient trill sign (^^^^)
4 - a \cup sign
5 - a slash
So, my problem is to have the effect of the continuation "0", but instead of
a line to see a circle, or a trill sign, or a \cup or a slash.
I hope this description is sufficientely clear, but English is not my mother
tongue...
Thank you very much,
Angelo Pagan
Angelo Pagan
CFP CNOS-FAP San Marco
Via dei Salesiani, 15 - 30174 Venezia-Mestre VE
