About Melody Harmonizer
If you enter a melody, this app can automatically calculate and select tonal center(s) and harmonize it. The system that can select proper tonal center(s) is also capable of making some scales. You can also create scales and harmonize of of them.
Incidentally, regarding how this system works please refer to my book that I have published on kindle.
This system is not AI due to the lack of my computer programming skills. Music harmonization system with AI means that it just follows the shadow of many past composers. In this respect, it is not computer-made music.
On the other hand, this system is based upon 100% pure music logic, not upon the shadow of past composers and therefore can be said that this system is pure computer-made harmonization.