[pitpank]

Thanks for your helpful feedback! I believe that lattice in the video is a Tonnetz. The Harmonic table and the Tonnetz are topologically equivalent, actually. I had doubts about the right-click being the best option to select notes. I thought a new user would left-click on the harmonic table initially, before reading anything, and I wanted that to just produce a sound rather than making an unwanted selection. But it's something I'm willing to change if more people finds it strange. I think you're right about the label order thing in chord buttons. I guess I found the Roman numerals more relevant in the progression context, but I agree it can be confusing. There's a help page (/how-to-use.html) with instructions and explanations of some concepts like parallel progression, but maybe a few tooltips can be helpful. Notes that have a lighter color are those that belong to the currently selected scale, to ease identification. At the same time, notes are slightly darker as they get lower in pitch. I like your idea about adding the scale degree label to notes. You mean something like 1, b2, 2, b3, 3, etc.? I'd have to make sure it doesn't get confused with octaves, though. Thanks again for sharing your thoughts.