In Norway, Hardanger fiddle enthusiasts eagerly anticipate competitions that frequently attract thousands of entrants. It's huge there. Besides competitions, the music is usually played at dances held in halls and barns. But there are listening tunes, as well. Hardanger fiddle music is passed down in traditional fashion.
Nothing is written.
But this effort is for documentation purposes only. True to this oral tradition, Mr. Trueman refrains from writing down his compositions. In general, he composes a tune for the fiddle. Then he approaches Ms. Mugan, and they work together to create the guitar line. And it's hard to imagine the right-hand patterns without actually having your hand on the instrument.