J.S. Bach: Partita No. 1 in B minor BWV 1002, VII. Tempo di Borea , Katha Zinn, violin 

Lol! Sorry to burst your bubble, but it’s very much one violin 😅 take a look at the score, it’s bar 28. The technique turns up in Bach frequently, and requires holding a legato on one string (A) while dipping down to grab a few notes on another string (D), giving the impression of two separate voices. That’s what Bach does best! 👍🏼

@@aTonalHits My bubble is gladly burst when it is done with fact and new insight of yet another incredible skill on the violin. Very wonderful. I enjoyed your playing very much. You have the privilege of experiencing so many great violins. Have you ever come across a Mangeao violin? They are very rare. Mangeao is a tree native only to New Zealand and when used instead of maple it produces a distinctive and unique tone. I have a 1923 mangeao violin here. I have tried 4 mangeao violins by 3 different luthiers and a cello and they all have the same recognisable mellow Mangeao tone. It's not for every genre of music but would be a superb addition to any virtuoso players set of instruments. For some compositions it would be exquisite. Mangeao is related to Avocado and was called the Singing Tree by old time saw millers because when a tree was cut down using a big 2 metre two man saw, the tree made the saw sing, as it does when played with a bow. Some are made with spruce tops, others with NZ Kauri top plate. I had to take mine apart to repair split seams and discovered a political poem written by the maker wishing 3 prominent politicians a future in hell. It's pretty funny the maker putting a message inside a violin that will only ever be seen by a future luthier doing repairs. I was going to plate tune the top but am reluctant to erase the message even though I know making the best of its potential tone is more important than pent up political frustration of the luthier. There were about 5 luthiers who have made Mangeao violins over the years, but very few instruments overall. One was auctioned in London some years ago. www.stuff.co.nz/taranaki-daily-news/news/7978998/Cello-comes-home