First, there are the basic tonal adjectives that stand on their own. Most guitarists would understand their meaning without the need for much clarification. The words in this group stand on their own because they are closely related to common control settings. Describing tone is simplified considerably when a comparison can be made and most of the adjectives in this group can be paired with a clear opposite. For example, you might compare bright vs. dark for highs, full vs. scooped for mids, fat vs. thin for lows or some other variation to express more or less of a particular attribute. You could say, ‘I’m using Acme brand 12AX7 tubes in my amp and they sound too muddy, I need something that will brighten up the highs and give me more gain.’