Please add in learning as must have at least the major and minor scales. In workout you have only the chords within the scale. Music is mathematics. We can’t learn mechanical some chords without knowing the entire scale of those chords. Also the chords within a scale shall be a must have and not only optional in workout. We learn notes from C4 to C5, let’s say, and than we learn that those notes are part of one scale. Than within this C scale there are chords we must learn… in a logical form.