But I found myself wondering if a harmonization could be more colorful. I wanted to use more advanced four-note chords and create more interesting modulations, at least temporary tonicizations to related keys.
It wasn't very difficult to do. Of course, I had to know these chords and the basics of harmonizing hymns with modulations and the key signatures of other keys. And yes, I recorded a video describing this process so that you could do the same. Enjoy!