This is a song about the passion inherent in listening to a truly well played instrument. If you've ever sat in a concert hall and listened to a professional play a violin you'll understand the shivers and quivers Kate's singing about here (Paganini's Caprice 01 is good for this particular feeling, I suggest finding it on Youtube and listening through headphones)
The speed at which some of those violinists move the bow, it's quite conceivable that they may have the Devil in the bow ;).
This is a song about the passion inherent in listening to a truly well played instrument. If you've ever sat in a concert hall and listened to a professional play a violin you'll understand the shivers and quivers Kate's singing about here (Paganini's Caprice 01 is good for this particular feeling, I suggest finding it on Youtube and listening through headphones) The speed at which some of those violinists move the bow, it's quite conceivable that they may have the Devil in the bow ;).