Triple Synaesthesia

An unusual example of triple synaesthesia.

"When E.S. hears tone intervals, the difference in pitch between two tones, she not only can see the musical notes as different colors but can taste the sounds."

This picture by ijl expresses audio-visual synaesthesia well enough (for me), even though it is just a static picture. Looking at this picture I can recognize/recall how ripples of sounds look in the visual modality of perception during synaesthesia.