[MEI-L] comment on MEI @clef.trans values

[Eleanor Selfridge-Field]

Hi, Don,

15ma [quindicesima] makes a lot more sense than 15va [compounded from ottava
+ ottava], but 15mb makes no sense at all. I'm not persuaded that just
because an instance of something exists, it needs to be accommodated in
Round 1 of MEI. 

It might be good just to keep a list of exceptions that might be desirable
for eventual inclusion (cf. the Dagstuhl core, which consigns them to Level
2). 

For exceptions of a more arbitrary nature (and Augenmusik in general), an
annotation should suffice. This is especially true for works of recent
decades, because in the current copyright climate, their encoding is
unlikely. 

Eleanor



-----Original Message-----
From: mei-l-bounces at lists.uni-paderborn.de
[mailto:mei-l-bounces at lists.uni-paderborn.de] On Behalf Of Byrd, Donald A.
Sent: Tuesday, August 11, 2009 6:35 PM
To: mei-l at lists.uni-paderborn.de
Subject: Re: [MEI-L] comment on MEI @clef.trans values

I vote for changing 15va => 15ma; also adding 15mb, which has actually 
been used in published music (if anyone cares, I know of three 
occurrences, one in a well-known piece: Cowell's The Tides of 
Manaunaun).

--Don


On Mon, 10 Aug 2009 13:44:12 -0700, Craig Sapp <craigsapp at gmail.com> wrote:

> Hello MEIers
>
> In DTD 1.9b, I notice that there are
> three choices for @clef.trans which is a
> transposition value for a clef sign:
>
> 8va = transpose up one octave higher than written
> 8vb = transpose down one octave lower than written
> 15va = transpose up two octaves.
>
> 8va is the abbreviation for "ottava" in Italian.
> 8ba is the modern abbreviation for "ottava bassa"
>
> 15va does not exists as an abbreviation in Italian,
> but is rather "15ma" which stands for quindicesima,
> or a perfect 15th (two octaves).
>
> It may be better to change "15va" to "15ma".  And if so,
> then also add "15mb" represending "quindicesima bassa"
> for playing two octaves lower for completeness.
>
> Alternatively, the transposition could be given numerically
> as in +1 for 8va, -1 for 8ba, +2 for 15ma and -2 for 15mb. Or,
> semitones could be used: +12 for 8va, -12 for 8vb, +24 for
> 15ma, and -24 for 15mb.
>
> -=+Craig
>
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>



--
Donald Byrd
Senior Scientist
Adjunct Associate Professor of Informatics & Music
Indiana University, Bloomington


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