I get textures too. Musical sounds have soft, sharp, smooth, etc. And it's weird too because I won't feel the texture on my body, but the texture will register in my brain. It's so weird. Also, the sun when it's really bright is sharp, almost cutting but if you're in the water at the same time, the sharpness is dulled and becomes smooth. If it's cloudy, it's soft kind of like cotton. Rain is like wool or sometimes like taffeta. We don't really have snow ever here so I don't have one for that other than a muted sound...no texture.
I guess I have these:
Light - Texture and some sound
Sound - Texture, color/shapes, and taste on occasion.
Taste - Color/shapes
Letters - some color