I want to know the answer to the following question:
What expensive wood with a prized color is used to make the backs of violins?
All the background I'm provided with is that "The choice of wood may make a significant difference to the tone and resonant qualities of the instrument, and tonewoods have widely differing properties, ranging from the hard and dense african blackwood (used for the bodies of clarinets) to the light but resonant European spruce (Picea abies), which is traditionally used for the soundboards of violins.". Is that enough to answer the question?
Answer: no