Notes of the Scale    Scale Formula
                      MAJOR SCALE 
CDEFGABC              W W 1/2 W W W 1/2
                      MINOR SCALE Natural
CDEbFGAbBbC           W 1/2 W W 1/2 W W 
                      Melodic ascending Natural desending
CDEbFGABC             W 1/2 W W W W 1/2
CBbAbGFEbDC           W W 1/2 W W 1/2 W
                      Harmonic minor scale
CDEbFGAbBC            W 1/2 W W 1/2 W+1/2 1/2
                      Chromatic Scales all 1/2 steps
                      includes 12 tones 
                      Whole Tone Scales has 6 tones
                      W W W W W
                      Pentatonic Scale 5 tones
black keys:2,3        W W+1/2 W W
black keys:3,2        W W W+1/2 W