Do the letters of the alphabet have colors for you? I associate music with colors and shapes, and I tend to associate scents with colors (skunk scent is lime green, for example.) My synaesthesia is manifested most strongly in the coloration of the alphabet and the digits 1-9 and 0.
Do you know Chinese or Japanese? If so, what colors are the ideograms? Is each ideogram one color, or are different parts different colors?
Some letters have colors (one or two) most do not. I associate sounds (musical and not) with colors, shapes and textures (visual textures). I know only about 4 chinese ideograms, none have colors. I’ll try to post my painting when it’s done- it seems the more I work on it, the more details I was unaware of become obvious.