How to harmonize a scale in 4 parts

A few organists asked me to demonstrate how I would harmonize a scale. So today I would like to share with you how you can do it using simple three-note chords. Mostly they are root position chords but in one instance you will need a first inversion chord as well.

If you want to master scale harmonization, transpose this exercise to every major and minor key (on paper or at the instrument). The starting point is here in closed position, but it's possible to begin the soprano one octave higher in open position (chords C-G-E-C and A-E-C-A).

Knowledge and mastery of harmony is very important to every organist. Therefore I teach these and many other concepts in great detail in my Harmony for Organists Level 1 course.