Research (Department of Experimental Psychology – University of Oxford) revealed that changing the pitch of a sound can influence human’s perceived taste: Higher tone pitch sweetens the perceived taste, lower tone pitch makes it appear more bitter.
Give it a try: drink coffee and hear different kind of music!
Further experiments indicate that tone pitch not only can influence our perception of taste, it even impacts our visual perceiving. People tend to match low pitches with darker objects and higher pitches with lighter objects.
Whilst scientific explanations for so called crossmodal effects are still uncertain – it is considered proven that everything that is heard is influencing our senses. That’s why music changes what we taste and even what we think.