
This isn’t how I hear it performed I think Arabic performers simply adjust. Arabic notation would have the B 1 quarter flat and would ignore the Hijaz softening.

While this song is traditionally Arabic, I notate it here using the Turkish sytem which is more explicit about the Hijaz softening. While Hijaz is softened generally, in Turkish Huzzam the E-flat is raised even higher, just because. However, generally in Turkish (and often in Arabic) the wide interval in Hijaz is “softened” by bringing the lower note (E-flat) up and the upper note (F-sharp) down, just a little (1 koma). Huzzam places the Hijaz tetrachord on D: D, E-flat, F-sharp, G. This is in the Segah family it is rooted on Segah, the B-very-slightly flat (1 koma flat), then has C and D. See comments on scores below.Ī version with ornaments is (here the notation uses twice as many symbols for the same amount of time):

Scores are here, for treble and alto clefs.
