Capturing the sounds and tones approved by band/artist that best represents their music.
Working with a band or artist to achieve the highest potential and right feel for a take, part, or song.
Recording direct instrument signal through specific amps and cabs.
Using equalizers, compression, and other methods to achieve the band's or artist's envisioned sound/feel.
Using EQ and dynamic treatment to achieve an optimal or desired volume, width, and fullness to a completed mix.