A Egyptian scale
The A Egyptian scale has the formula 1, 2, 4, 5, b7 with notes A, B, D, E, G
The Egyptian scale is a type of pentatonic scale. It is similar to the Dorian scale, except with the 2nd and 6th notes omitted. This scale is sometimes referred to as the suspended pentatonic scale, and plays well over 7sus2 and 9sus2 chords.