How to play a Harmonized Scale?

Technically, you can play a major scale by applying the formula of Whole, Whole, Half, Whole, Whole, Whole, Half to any beginning note.  If we applied it to middle C on the piano, you will end up with a sequence that looks like this:  C, D, E, F, G, A, B, C, D, E, F,....and so on.  Therefore, all the white keys, and no black keys will be used.  So, how to insert black keys?  Simple, pick ANY other starting point on the piano, and you will end up with as little as one black key inserted, or as much as all of the black keys.  By the, way, a piano is a good way to visualize a scale, but for the abstract thinkers, a guitar will obviously produce the same results.  

So, how to take that C major scale and make it into a harmonized sort of scale?  Again, technically, ANY combo of notes will do, however, an understanding of chord formula is crucial here.  Harmony is no more that several notes played at the same time.  This will produce chords!  So, a harmonized scale is simply chords.

Take the 1, 3, 5 notes of the scale, and you will make a major triad chord...take the 2, 4, 6 notes of the major scale and your chord now is a minor triad...so here is the sequence of chords that will naturally happen when you take all 7 given triads (1.3.5; 2.4.6; 3.5.7...etc...)

Major triad chord; 

minor triad chord; 

minor triad chord; 

Major triad chord; 

Major triad chord; 

minor triad chord; 

diminished triad chord;

Keep playing!