The user interface (UI) and workflow integration have also seen refinement. Hornet has a reputation for creating visually intuitive plugins, and MK4 is no exception. The update streamlines the visual feedback, providing a clear, resizable display of the detected root note, chord type, and scale. This is particularly useful for improvisational settings or educational contexts. If a musician is unsure of the key they are playing in, MK4 acts as a real-time theoretical assistant, suggesting compatible scales and chords. This bridges the gap between technical music theory and intuitive performance, making it a valuable learning aid for beginners and a quick reference for seasoned professionals.