1.   A music lover and avid concertgoer, he said he built a guitar several years ago but was not a violin expert.

2.   Decked out in a checked suit as a world-renowned violin expert, he was working on an attitude of weary sophistication.

3.   Finally, in the present day, it lands at an auction house in Montreal, where the violin expert played by Jackson becomes obsessed with it.

4.   He said radiologists and violin experts would have to be taught to read the scans.

5.   In yet another subplot, Jackson, in a virtuoso performance of his own, is the violin expert brought in to authenticate the Red Violin.