Lately I’ve been trying to create synthetic instruments from processing samples in the box. I want to know if creating harmonic differences between velocity layers through a means of filtering is a common practice? and if so, how would I go about this? I’m trying to imitate the differences in harmonics between playing softly and hard on an acoustic instrument. The problem I’m having when experimenting with this technique is matching timbre through the circle of fifths. Obviously the same EQ curve can not be applied to higher notes as it starts filtering off the actual note. Any help or advice would be much appreciated.