Frequency Isolator/Remover Utility. Its game changer for many tasks, also when you need cut any range of frequency (popular in DJs world) without filters Cutoff.
Isolation of Frequency range can mute in musical composition vocal or any instrument freq range.
Low Frequency / High Frequency: range of frequency to Isolate/Remove
Low / Mid / High Triple MASS control: manipulate mass of frequencies in current range (Low / High freq) from 100% to 0%.