An excellent blog on this: http://nichtdiesetone.blogspot.com/2009/12/intervals-and-astrology_07.html
A person of interest:
http://en.wikipedia.org/wiki/Corinne_Heline
The original article: http://www.dovesong.com/positive_music/archives/basement/twentyfirst(4).asp
Many thanks to Don Robertson, the images belong to him.
http://wfae.proscenia.net/library/articles/levant_Language.pdf
An excellent article by Yvie Levant
