In an attempt ot imagine what sort of Moses may have heard during his childhood in Egypt, this is an improvisaton on an actual ancient Egyptian minor pentatonic scale, deciphered by the late Prof. Hans KHickman.
HIckman managed to decipher this scale from depictions of ancient Egyptian 'cheironomy' - an ancient system of musical notation, whereby specific hand gestures represented specific changes in the pitch of a melody.
The practice of Egyptian cheironomy still survives to the present day, in the practices of the Coptic Church.