Sei Solo: Symbolum?

One of the jewels in the crown of Johann Sebastian Bach''s sacred music is its use of astonishingly subtle and complex allegorical and representational devices. But when similar devices appear in the context of one of Bach''s untexted, secular, instrumental collections such as the Six Solos (sonatas and partitas) for violin, the question arises whether he might be intending to embed discernible th...