[svennidal]

Someone sure did put a lot of work into this. I can appreciate that. That said, as a musician, I’d prefer if someone just told me the key and progression, or just started playing and I could jump in. I’m not that good with colors.

[davay]

Chromatone is useful on the way there while you're still learning those keys and scales. Just open that panel with a note name on the left, choose click the tonic note and choose a scale and you will immediately see the notes to play on your keyboard and guitar/ukulele without any need to memorize or calculate the interval steps. Then you memorize them and don't need the colors any more. But they help you get there much faster and with less pressure on memory and long hours of practice.

[partomniscient]

From personal experience, I think having to unlearn the trigger(s) - in this case a specific colour creates more difficulty than its worth. You're intentionally coupling then de-coupling neuronal networks, and the de-coupling is harder than the coupling.

It also makes me wonder how much cognitive dissonance this may cause for those with synaethesia who already have their own thing going on.