█ OVERVIEW This indicator was designed based on Harmonic Trading : Volume One written by Scott Carney. This is about harmonic ratios which expanded through retracement and projection. Derivation is pretty much explained here such as Primary, Primary Derivation, Secondary Derivation and Secondary Derivation Extreme. Derivation value depends on minimum retracement or maximum projection. This derivation value utilize Fibonacci value which later expand to Harmonic Ratio.