@patrickrhone Yes, I definitely get your drift. Learning something like that about an artist can give us new insight into the art, just as it helped the artist make things that gives us a new insight into the world, coaxing us to see and hear it in new, surprising ways.
I have no idea what new insights someone might have into my own songs and poems upon learning of my synesthesia, since to me it’s as foundational as my eye color or the number of syllables in my name, and every bit as irrelevant to my art. But then, I’m only the artist — who am I to say what is or isn’t important?
I remember when I learned that not only did Nabokov have synesthesia, but he was also literally tone-deaf. Suddenly his prose rhythms made so much more sense to me. What had seemed before like a strange music that I was always straining to hear wasn’t actually music at all, but rather shards of color like crystalized chess endgames, or iridescent chips of Chagall and van Gogh shuffled like a deck of cards and laid out in baffling divinatory spreads — baffling but obvious, surprising but inevitable.