What this visualizer is for

This tool is designed for slow chromatic harmonica practice: long tones, intonation checks, slide awareness, and learning where each pitch lives on the instrument. The embedded stage keeps the page readable for study, while full screen mode gives you the immersive light-column practice view.

What the microphone can and cannot know

A browser microphone can detect pitch, but it cannot see your slide button or breath direction. When the same pitch appears in more than one place, the tool shows the most useful default position on a C chromatic harmonica.

Best setup

Practice in a quiet room, keep the harmonica close to the microphone, and use sustained notes. Fast bends, noisy attacks, and room echo make pitch detection less stable.

How to use full screen mode

Use the embedded view when you are reading instructions or comparing the note chart. Switch to full screen when you want the same immersive Magic Harmonica training view from Harmonica Home, with the animated hole row, light columns, pitch panel, and demo mode.