Re: locus notation for spatial music

Thanks Daniel, James, and Anselm.

Locus notation is indeed not widely used. That makes sense that it would
therefore not yet be qualified for inclusion in SMuFL. Luís and I will work
on popularizing it, then, and once we can establish a corpus of scores
using locus, we'll revisit. I'm glad to see that there is some support here
initially!

Best,
Douglas

On Sun, Feb 28, 2021 at 6:14 AM Daniel Spreadbury <D.Spreadbury@steinberg.de>
wrote:

> Thanks for this proposal, Douglas. It appears that these symbols are of
> Luís’s own invention and have not yet been included in any published works?
>
>
>
> As such, that would normally disqualify them from inclusion in SMuFL until
> they have become at least somewhat established in their use.
>
>
>
> If I’m misunderstanding and there is a corpus of scores that use these
> symbols, please let me know.
>
>
>
> Daniel
>
>
>
> *From: *Douglas Blumeyer <douglas.blumeyer@gmail.com>
> *Date: *Saturday, 27 February 2021 at 23:47
> *To: *public-music-notation@w3.org <public-music-notation@w3.org>
> *Cc: *Luís Zanforlin <music@luiszanforlin.com>
> *Subject: *locus notation for spatial music
>
> Hello my fellow MNCG folks,
>
> At present, SMuFL lacks any way of notating spatial music. Luís
> Zanforlin’s locus notation
> <http://luiszanforlin.com/projects/project003/project_page.html> is an
> excellent solution to the problem, and I’d like to get it included in SMuFL.
>
> It includes 26 glyphs which indicate head-relative source positions from a
> top-down perspective. The spatial resolution is 45°; there are 8 glyphs
> which indicate front, front right, right, back right, back, back left,
> left, and front left. An additional 8 glyphs indicate these same directions
> except more distantly positioned, and an additional 8 indicate them except
> more closely positioned. Then one glyph indicates center position, and one
> glyph indicates non-directional sound.
>
> There are an additional 8 glyphs which indicate vertical source position:
> distantly above, above, closely above, center, closely below, below,
> distantly below, and vertically non-directional.
>
> Then there are 5 glyphs which indicate motion. A dash glyph indicates
> motion in general from one position to another. Then there are two curved
> arrows which indicate clockwise or counterclockwise rotation while
> maintaining the same radius. Vertically mirrored versions of these arrows
> are also available for when the sound is in the back, which looks more
> natural on the page.
>
> I understand that SMuFL prefers to organize itself in chunks of 16 glyphs,
> due to the hexadecimal nature of Unicode codepoints. Locus notation
> contains a total of 26 + 8 + 1 + 4 = 39 glyphs, so it would need 3 sets of
> 16 codepoints for a total of 48 codepoints (leaving 9 leftover for later if
> need arises).
>
> I have worked with Luís (cc’d here) to prepare a list of glyphnames and
> descriptions. Would there be anything else required?
>
> The glyphs can be found in this font:
> http://luiszanforlin.com//downloads/Locus-Regular_v1.0.ttf
> <http://luiszanforlin.com/downloads/Locus-Regular_v1.0.ttf>
>
> Once codepoints are assigned, I can prepare a modified version of the
> Bravura Font with the correct glyphs in the correct positions.
>
> By the way, Luís and I are open to any feedback folks here may have on the
> craft of the glyphs. Luís designed them himself, and we both think they
> look acceptable. But neither he nor I are professional font designers, so
> we’re concerned we may be missing opportunities to optimize the design,
> whether for legibility or synergy with other symbol symbols (e.g. should
> line thicknesses match staff line thickness, etc.)
>
> Thanks in advance for your consideration,
>
> Douglas
>
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