Re: The hel-arabic.ly file story...

[Lukas-Fabian Moser]

Hello Hassan,

> Hello
> I am hassan EL FATIHI author of hel-arabic.ly,
> if you have questions or changes to propose I am at your disposal.
> I have been practicing Arabic music for more than thirty years,
> in addition I am a computer scientist which pushed me to program hel-arabic.ly

What's most surprising to me in hel-arabic.ly is the use of the 
sharp.slashslash.stemstemstem accidental. In all Arabic music I know 
(and also in arabic.ly, in 
https://www.w3.org/2021/03/smufl14/tables/arabic-accidentals.html, in 
https://en.wikipedia.org/wiki/Arab_tone_system and other sources), this 
is used to designate a sharpening by a 3/4 tone - which is also quite 
logical, designating the progression from 1/4 tone, 1/2=2/4 tones, 3/4 
tones by an increasing number of vertical lines in the accidental glyph.

In hel-arabic.ly, the symbol is used for the huge amount of raising by 
7/2 tones (which is more than half an octave). What musical practice 
does this relate to? Can you give examples in the literature, 
pieces/maqams/... in which this kind of alteration is being used?

Lukas