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<font face="Calibri">I do not think that the usage of the letters
A-G in the <i>Musica Enchiriadis</i> really can be equated with
what the 11th-century <i>Dialogus</i> [of pseudo Odo] did. Is not
it so that the <i>Musica Enchiriadis </i>sequence starts at A
and continues as far as necessary, and repeats it for a second
voice, but without giving clear indication as to where the
semitones are found? This is not utterly different from earlier
usages [e.g. by Boethius] were the alphabet was extended to as many
letters as needed. The main difference in the <i>Enchirias</i> is
that the same lettering is used for the second voice.<br>
<br>
The unique achievement of the <i>Dialogus</i> is that it shows
the organization of the musical system itself, i.e. of all pitches
available to make music; so doing it repeats a point already made
by Hucbald, that all music [that they knew] could be made to
correspond to one single systematic scale. Their aim was not to
laying out modes, but to show that all modes could be brought back
to the same [diatonic] scale.<br>
<br>
Nicolas Meeùs<br>
Université Paris-Sorbonne (emeritus)<br>
<br>
<br>
<br>
</font>
<div class="moz-cite-prefix">Le 20/05/2014 08:28, Fiona McAlpine a
écrit :<br>
</div>
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Perhaps we should just get rid of Pesudo-Odo, as if he is a
person, & refer to the C10th treatise <i>Dialogus de Musica.
</i>In fact the C9th/early C10th <i>Musica Enchiriadis </i>uses
the letters A-G as a repeating sequence; not, however, for the
purpose of laying out a mode in a scalar way, but as pitch
indicators in a diastemmatic-syllabic diagram to show organum at
the octave, in a way that the <i>Musica Enchiriadis'</i> tetrachordal
notation never could have.<br>
<div><br>
<div style="font-family:Tahoma; font-size:13px">
<div><font class="Apple-style-span" style="font-size:13px"
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McAlpine</font></span></font>
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class="Apple-style-span" face="'Times New Roman'"><span
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class="Apple-style-span" color="#800080">School of
Music</font></span></font></div>
<div style="font-family:Tahoma; font-size:13px"><font
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of Auckland</font></span></font></div>
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<div id="divRpF817127" style="direction: ltr;"><font
color="#000000" face="Tahoma" size="2"><b>From:</b>
Smt-talk [<a class="moz-txt-link-abbreviated" href="mailto:smt-talk-bounces@lists.societymusictheory.org">smt-talk-bounces@lists.societymusictheory.org</a>]
on behalf of Nicolas Meeùs [<a class="moz-txt-link-abbreviated" href="mailto:nicolas.meeus@scarlet.be">nicolas.meeus@scarlet.be</a>]<br>
<b>Sent:</b> Tuesday, 20 May 2014 08:30<br>
<b>To:</b> art samplaski;
<a class="moz-txt-link-abbreviated" href="mailto:smt-talk@lists.societymusictheory.org">smt-talk@lists.societymusictheory.org</a><br>
<b>Subject:</b> Re: [Smt-talk] Seven-letter scale notation
(was re: scale degrees)<br>
</font><br>
</div>
<div><font face="Calibri">My mistake, I meant <i>c</i>1000.
Ps Odo predated Guido by about a generation, 25 years.<br>
Nicolas<br>
<br>
Nicolas Meeùs<br>
Professeur émérite<br>
Université Paris-Sorbonne<br>
<br>
<br>
<br>
</font>
<div class="moz-cite-prefix">Le 19/05/2014 18:35, art
samplaski a écrit :<br>
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<div dir="ltr">A couple of digests ago, Nicolas Mee<span
style="font-family:'Times New Roman','serif';
font-size:11pt"><font face="Times New Roman">ú</font></span>s
wrote:<br>
> --[Pseudo] Odo, /c/1100, apparently was the first
medieval author to suggest the
<br>
> notation with seven letters, cycling at the octave,
which is still in <br>
> use today, and which for a long time was in use in
parallel with the <br>
> tetrachordal/hexachordal naming of the degrees.<br>
<br>
A question, and a possible correction.<br>
<br>
Has the dating on "Odo" been revised? I had always
thought he predated<br>
Guido of Arezzo by a few years. (The online NGD2 entry
on modal theory<br>
still lists him as such, as of 10 min. ago...:)<br>
<br>
Guido definitely uses the seven-letter notation
system in both the _Regule<br>
rithmice_ and the _Micrologus_, using an analogy to the
7 days of the week<br>
that I believe is also used by Ps-Odo--no access just at
the moment to check.<br>
No idea if that analogy is original with Ps-Odo or was
some sort of common<br>
coinage--if anyone has info one way or another on that
I'd love to hear it.:)<br>
<br>
Art Samplaski<br>
Ithaca, NY <br>
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