It's reasonably well known that music affects how we behave. For instance romantic music is set to be a good ingredient for a romantic date, whilst restaurants have used music to affect the mood of diners for years. For instance it's common for restaurants to play classical music because it makes diners feel classier and therefore pay more for their food.
So the concept of one sensory channel having an impact on another should not be new to us. What I think is relatively new however is the idea that one of our other senses can have an influence on our sense of taste.
There is research emerging however that does just that. For instance there are suggestions that crisps taste better to us if they make a nice crisp crunch sound when we chow down on them.
In a similar vein, recent research has shown that our appreciation of wine changes depending on the music we're listening to whilst drinking it.
The research showed that our perception of the wine matched that of the music playing whilst we drunk it. They tended to think their wine had the qualities of the music they were listening to. So, for example, both the red and white wines were given the highest ratings for being powerful and heavy by those participants who drank them to the tune of Carmina Burana.
I tend to use music to influence mood too – if I'm trying to concentrate, I'll most likely listen to rock music (Screaming Trees; Megadeth or something quite intense like that); relaxing has to be classical music and if I'm looking for some energy it has to be something like dance music.
60's and pop music is for lightening the mood and the Beatles are particularly mood lifting, especially their early material.
Based on that, I can completely understand that music can and would influence other things such as our perception of value / price.
I have to be in silence if I'm trying to concentrate on anything tricky. Some decent music can help if the task just requires you to get into a rhythm though.
As for wine, I suspect that most people haven't got a clue about good wine anyway so are more than happy to be led by all manner of things.