Hijaz Kar is built from two Hijaz segments: one above the root and one above the fifth degree, so it contains two augmented seconds. It has no quarter tones.
Choose an instrument and a root above to see Hijaz Kar on the fretboard.
Note: a regular flat (like E♭) is a semitone, so it is blue. Only a half-flat (↓, e.g. E↓ or B↓) is a quarter tone, shown in yellow. Each quarter tone is drawn inside the fret box above it, and if that box also holds a regular note, both are shown side by side. Play it by bending the string or on a fretless guitar.
Degrees: 1 - b2 - 3 - 4 - 5 - b6 - 7
Notes on D: D E♭ F♯ G A B♭ D♭
Notes on C: C D♭ E F G A♭ B
Maqam Hijaz Kar has no quarter tones, so it can be played on instruments with regular frets without any change.