Kwes has chromesthesia (sound to colour synaesthesia).

With sounds inducing color concurrents, chromesthesia is more accurately termed sound-color synesthesia.

For the purpose of disambiguation, this article will refer to this chromesthesia in inducer-concurrent terms used to describe other forms of synesthesia.

Chromesthesia or sound to color synesthesia is a type of synesthesia in which heard sounds automatically and involuntarily evoke an experience of color.

At an early age she studied to play the piano and later reported experiencing chromesthesia, saying "when I would listen to music, I would visualize sinuous colorful shapes in space."

According to Richard Cytowic, sound color synesthesia, or chromesthesia is "something like fireworks": voice, music, and assorted environmental sounds such as clattering dishes or dog barks trigger color and firework shapes that arise, move around, and then fade when the sound ends.