Re: Use Cases

Dear Joe,

This looks really great! I have three comments/suggestions:
1. Can users act in a number of Roles simultaneously? I think they can, and
I suggest we state this explicitly.
2. Perhaps we should introduce the user role Learner.
3. An additional use case for addressing/referencing music notation.

*1. User roles - in general*
I think it would be important to clarify that users can act in a number of
Roles simultaneously. Performing musicians during preparation, especially
individual preparation, can take the role of a Learner and/or Musicologist.
On other occasion they require different use cases. For instance they want
to* "hear an audio rendition of the music being displayed
[Performer/Learner]" *and "*distinguish editorial inferences from assured,
explicit information in a manuscript [Musicologist]" *while they are
working on their own interpretation, but they also also want to "*synchronize
a live performance with sheet music[Performer]" *during a performance.

There are other role intersections such as the one between
Composer/Editor/Engraver/Publisher or between Performer/Editor. When a
"composer" wants to* specify positioning of notational elements for visual
clarity (distinct from musical semantics), *they really are taking on an
editor's or engraver's hat. I think the recognition that these overlaps
exist between user roles is of vital importance.

*2. User roles - in particular*
The following use cases, it seems to me, are associated with a learner role
rather than directly related to performance. Just like a professional
player, a music student also may want:
*- "to hear an audio rendition of the music being displayed"*
- "*to** have their performance of some music assessed with respect to the
score as a reference"*
It may make sense to define a role called Learner. I have not attempted to
fully define all sue cases for this role, but if others also think this is
a valid role, I am sure there we will find a number of use cases (either
already proposed, but currently associated with other roles, or new ones).

*3. Additional use case*
*[User] wants to address and reference a selection of musical text within a
notation document.*
I am not entirely sure under which heading this should go, since it is
related to the a number of other proposed use cases, such as
 - "highlight" use cases in the "Arbitrary apps" section,
 - *"cross-reference readings or interpretations with their source
material, in this document or elsewhere." *

Best
Zoltan


On Tue, Nov 24, 2015 at 10:30 PM, Joe Berkovitz <joe@noteflight.com> wrote:

> Hi Group,
>
> Thank you for your patience! It's taken rather longer than I would have
> liked, due to my being sidelined by illness for a while, but with the
> co-chairs' help I've prepared an initial list of annotated use cases on the
> Music Notation CG wiki at this URL:
>
>
> https://www.w3.org/community/music-notation/wiki/MusicXML_Use_Cases#Use_Cases
>
> We are eager to generate some feedback and additional depth for the
> existing cases, and also to add cases that we have overlooked. New material
> can be added directly in the wiki page by editing it using your W3C
> account. Please follow the existing formatting by italicizing use case
> headings and adding indented notes or descriptions below these headings.
>
> The chairs have a couple of requests to frame this phase of the discussion:
>
> - Let's avoid debates on what is in or out of scope. That will come later.
> Undoubtedly not everything will be in scope, but we first want to collect
> all the ideas worth collecting.
>
> - For the moment, we would like to focus mostly on what users are doing
> with musical documents, and return to the question of the nature of the
> musical content itself at a later point (CMN, neumes, mensural,
> contemporary, arbitrary graphics...).
>
> I'm very much looking forward to this exchange!
>
> Best,
>
> .            .       .    .  . ...Joe
>
> *Joe Berkovitz*
> President
>
> *Noteflight LLC*
> 49R Day Street / Somerville, MA 02144 / USA
> phone: +1 978 314 6271
> www.noteflight.com
> "Your music, everywhere"
>

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