The combination of two or more senses colliding or describing each other. Will usually be seen on a singular character of the group- but most at home with the Cloud Cuckoo Lander
(due to the oddness of describing the note C# as a very specific color).
Truth in Television as the phenomenon known as synesthesia.
The depiction of Remy's creative process in Ratatouille is fairly accurate to the heart of this YKTTW