[MEI-L] Different <expansion> versions within <choice>?

[Craig Sapp]

> There should be another type: "typical" repetitions that reflect omitted
> repetitions at a da-capo Minuet (A A B B C C D D A B).


That is OK, but I would categorize this case as "full expansion", or maybe
called the "default expansion" to not imply that the full expansion
requires repeating of the A and B after the da-capo.



On Mon, 19 Aug 2019 at 12:24, Craig Sapp <craigsapp at gmail.com> wrote:

> One thought about the expansion list, such as:
>
> <choice>
>          <expansion xml:id="expansion-full" plist="#A #A1 #A #A2 #B #B1
>                #B #B2 #C #C1 #C #C2 #A #A2 #B #B2">
>          <expansion xml:id="expansion-minimal" plist="#A #A2 #B #B2 #C #A
> #A2
>                #B #B2">
>          <expansion xml:id="expansion-arrau1956" plist="#A #A1 #A #A2 #B
>                #B2 #C #C2 #A #A1 #A #A2 #B">
> </choice>
>
> It would be useful to have a standardized method of identifying what you
> are IDing as "expansion-full" and "expansion-minimal".  In other words, the
> performance sequence when taking repeats as instructed in the score and not
> taking repeats.  Special labeling of these two expansion cases would be
> useful for analytic purposes such as determining the duration of Beethoven
> sonatas when taking written repeats or with no repeats.  And these special
> cases should not be encoded only in the structure of the expansion IDs.
> That is the main purpose of the expansion at type in the Humdrum
> conversions, where the default expansion indicates the performance sequence
> taking repeats as written, and "norep" is the minimal performance sequence
> (with "norep" meaning "no repeats").  The norep expansion is particularly
> useful for doing computational analysis of the score, since the repeated
> material is usually not needed.
>
> -=+Craig
>
>
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