5.2. Relation Rules and Rule Builder

Each relation rule describes one or more accepted source-to-destination relationships. A rule can constrain source and destination modes, source and destination tonics, or a destination tonic movement relative to the source.

Use Add for a new rule, Edit to open Rule Builder, Enable/Disable to change the selected rules, and drag rows to set priority. Reset restores General Purpose. Duplicate and delete remain under More.

Rule Builder expresses alternatives rather than a hidden script. Common relationships take one alternative, for example, the same mode with a destination root five semitones higher. More specific ideas can enumerate modes or tonics, use steps from the source mode, or combine several alternatives inside one named rule.

Saving the rule applies its complete current definition to the Mix. Canceling a changed form asks before discarding edits. At least one relation rule must remain enabled so the profile always has a usable harmonic meaning.