Nikriz is a maqam whose signature is the raised fourth degree (#4), which creates an augmented second between the third and fourth degrees. It has no quarter tones.
Choose an instrument and a root above to see Nikriz 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 - 2 - b3 - #4 - 5 - 6 - b7
Notes on D: D E F A♭ A B C
Notes on C: C D E♭ F♯ G A B♭
Maqam Nikriz has no quarter tones, so it can be played on instruments with regular frets without any change.