Astrological sign of a sign are together sufficient to define it, they can be grouped to indicate their symbolism. The first four signs, Aries, Taurus, Gemini and Cancer, form the group of personal signs. The next four signs, Leo, Virgo, Libra and Scorpio form the group of interpersonal signs. The last four signs of the zodiac, Sagittarius, Capricorn, Aquarius and Pisces, form the group of transpersonal signs. Dane Rudhyar presented the tropical zodiac primary factors, used in the curriculum of the RASA School of Astrology. The tropical zodiac is the zodiac of seasonal factors as opposed to the sidereal zodiac (constellation factors).
The Zodiac: Cosmic Sounds musing upon aspects of each astrological sign in a rich, deep voice without a hint of irony." Garson collaborated with Wilson in 1968 on another concept album, "The Wozard of Iz", on that occasion with producer Bernie Krause. Paul Beaver later collaborated with Krause on several albums. Garson later recorded several further LPs on individual zodiac signs, and became best known for composing music for National Geographic programming, though he did not, as sometimes repeated, compose its theme song. In the liner notes for the 1997 Moody Blues compilation "The Best of the Moody Blues", Justin Hayward named this album