Creating complementary EQ curves
We now know that it’s best to make EQ decisions in context, based on how we want to push and pull the listener’s focus and compliment all the instruments and song as a whole. We also know that frequency and pitch are directly related. And therefore, elements playing in the same octave are in danger of competing with each other and may need special consideration in regards to EQ to sound good in context. Simply boosting an instrument’s fundamental frequency tends to make instruments blur together in the mix...... http://corner1stop.com/open-sounding-mixes/