Chromatone is just a way to get over the wall of the classical music theory, but it doesn't magically give you skills and muscle memory - you still would need to invest time into practicing different aspects of music to start feeling comfortable improvising in public. And this state when you can just let go conscious control and let the music flow through you naturally and in sync with others seems to be the ultimate culmination of the whole study process, that may take years and years. So we can't eliminate the need for personal focus and effort, but we definitely can make this time more colorful, fun and safe for your feelings. Chromatone helps to get the basics intuitively and trust the design to carry the load of recognizing the exact pitches - the spectrogram augments the ear training, circular metronome helps establish steady rhythmic patterns, colorful circle of fifths allows everyone to operate on harmony without repetitive learning of scale degrees by heart. Visual clues provide clarity and hard structure, but you would need to learn to use it for your benefit. And it depends on your goals, that you set for yourself with this course.