So I came across this interesting statement about the way we should play Bach's solo violin pieces. One source claimed that Bach was not a lousy writer — he was actually a very accurate and rigorous writer in his music, not leaving out many things he wanted to put in the score. Is this true?
The importance of this has to do with his autographs of the Libro Primo for solo violin. They are beautiful and I love the modern renditions by many great violinists, but this remains: we play the chords in the broken way, simply because the bow can only touch two strings at once. However, it seemed that in Bach's day the bow was different and there might even have been a German bowing tradition which used a bow that could touch more than 2 strings, depending on how much pressure you exerted on the hair with your thumb. This would allow you to play Bach's solo violin like a keyboard player would do it.
The strongest evidence for this comes from the presumption that Bach was an accurate writer: In one of the pieces, he put "arpeggio" in front of some chords. This implies that all the other times in solo violin, he did NOT expect arpeggio style playing at all. Are we all fatally wrong in playing Bach violin?