Chopin's music always sounds like Chopin's music. Had he lived in the 21st Century, I wonder if he would have a propensity for dark background on web pages.
I associate major keys with lighter colors and minor keys with darker colors, and keys with many flats/sharps with darker colors than keys with few accidentals. I'm particularly enamored with Chopin's music that's in C# minor and Bb minor. I can't explain why.
On the other hand, I also enjoy tunes in F minor and Dorian mode. My color associations with Greek modes roughly follow their parallel major keys.
Table of major keys:
| C major | white |
| G major | grass green |
| D major | sky blue with a hint of yellow |
| A major | mixture of lavender and light crimson |
| E major | vermilion |
| B major | silvery blue |
| F major | orange-yellow |
| Bb major | dark blue-gray |
| Eb major | mixture of dark crimson and violet |
| Ab major | dark-gray violet |
| Db major | dark blue-silver-gray |
| Gb major | dark olive-green |
Table of their relative minor keys:
| A minor | lavender |
| E minor | mixture of salmon and vermilion |
| B minor | ivory |
| F# minor | yellow ochre |
| C# minor | metallic silver |
| G# minor | dark green |
| D minor | light sky blue-gray |
| G minor | light olive-green |
| C minor | beige |
| F minor | grayish yellow |
| Bb minor | gray |
| Eb minor | dark vermilion |
