The relationship between relative keys necessitates the creation of two separate circles of fifths - one for major keys and another for minor keys - to accurately represent their harmonic relationships.

Relative major and minor keys share the same key signature, resulting in each position on the circle of fifths representing both a major key and its relative minor, creating a dual-layer structure.

The concept of relative keys is irrelevant to the circle of fifths, as the circle is structured solely based on the progression of perfect fifth intervals between adjacent keys.

Relative major and minor keys occupy opposite positions on the circle of fifths, creating a symmetrical pattern that balances the sharp and flat key signatures.