MUSIC AND SCIENCE 1.Every Major scale is composed of 2 tetrachords. http://www.computersetcsoftwaretrainingcenter.com/Tutorials/Read_Music/READ%20MUSIC%20IN%20THREE%20HOURS_files/image055.jpg Tetrachord is: W-W-H....... step ( W2H ) Just like...... http://www.h2ouniversity.org/assets/images/water_molecules.jpg H20....!!! Tetrachord has 4 notes..... Just like.... Adenine, Thymine, , Guanine, Cytosine or A, T, G, C http://www.biologycorner.com/bio1/DNA.html __________________________________________ Long time ago there was a happy family Marsunovic ( Mar-Sun-o-vic ). Why not! 1.Mother was C-Major 2.Father was G- Major He was her True Soul Mate ( Sol-G). She gave him her first tetrachord C-D-E-F ( Adenine, Thymine, , Guanine, Cytosine or A, T, G, C ) and he gave her his first tetrachord G-A-B-C ( Adenine, Thymine, , Guanine, Cytosine or A, T, G, C ) and they had 3 children ( 3 minor scales ). 2 boys and a girl! http://www.thecoca-colacompany.com/investors/annualandotherreports/2005/images/introduction4_1.jpg The middle name for all of them was A-miner, just like her vi-th letter of her alphabet. 1. Aeolian A. Marsunovic - boy 2. Harmonic A. Marsunovic -boy 3. Ascending A. Marsunovic -girl http://www.music.vt.edu/musicdictionary/appendix/scales/scales/minorscales.html