hi amtaha ;
I would like to say that the pentatonic scales exist in arabic music,
in fact the characteristic of the tunisian scales is the use of the petatonics which consists of using thirds and avoid as much as possible the
adjacent notes.
example : the mazmoum scale is the analog of F Major in western scales and to the Ajam on F. but in mazmoum we use for example : F - A - C - A - G-
B(b) - G - F
as an example here is an improvisation on the mazmoum scale which is based on pentatonic scale: