Johann Schop

Johann Schop (ca. 1590 – 1667) was a German violinist and composer, much admired as a musician and a technician, who was a virtuoso and whose compositions for the violin set impressive technical demands for that area at that time.
In 1756 Leopold Mozart commented on the difficulty of a trill in a work by Schop, probably composed before 1646.

He worked in Hamburg. He published books of violin music in 4 to 6 parts; some of his music was performed at the Peace of Westphalia celebrations. <a href="https://www.last.fm/music/Johann+Schop">Read more on Last.fm</a>