When you click on a piano key will show all it's listenable harmonics
If you set your mouse over a key or a partial you will hear it's exact frequency.
You can click again on a key to remove it's harmonics. You can select several keys too.
How right are the firsts partials ?
|Order||Partial #||Closest tempered note||Quotity of ½ tones of distance||Simplest decomposition in harmonic intervals|