Think of mastering as the glue, varnish and polish that optimizes playback quality on all devices — from tiny iPhone speakers to massive dance club sound systems. Mastering bridges the gap between artist and consumer. The term itself comes from the idea of a master copy. All copies or duplications of the audio come from the master. These copies can be distributed on multiple formats like vinyl, CD’s or Tape, and streaming services like Spotify, iTunes and SoundCloud. Additionally, mastering allows for restoration of hisses, clicks or small mistakes missed in the final mix. Mastering also ensures uniformity and consistency of sound between multiple tracks on an album. Ultimately, what mastering does is create a clean and cohesive feeling across all your audio.