Perlman Tartini Devil's trill
https://www.youtube.com/watch?v=8HPud-j9F1M&list=PL6B0A91F744A90FF9&index=1
https://www.youtube.com/watch?v=jeLkouLvpN4&list=PL6B0A91F744A90FF9&index=2
https://www.youtube.com/watch?v=CyQwD9KZvhc&list=PL6B0A91F744A90FF9&index=3
https://www.youtube.com/watch?v=LnvUS0QxDYo&list=PL6B0A91F744A90FF9&index=4