Seven represents universal balance. This is illustrated by the symbol for earth, a square with four sides, combined with the trinity, representing heaven. These are bound together in harmony, forming a seven-pointed star. In an elven star, this balance is symbolized by three over four, or heaven over earth. The elven star has inspired us for many songs, including 111 .
Rhythms have their own meanings in culture.
Four beats, especially with a driving down beat, represents rain in many Native American cultures. In ancient Mayan cultures, five beats were war beats, as illustrated in Holst's Mars from 'The Planets'. Six has traditionally been a female pattern, representing the joining of threes. This pattern is rumored to be beneficial in calming storms. For us, sevens unite the earth and sky, creating a third space.