mh7635
You are dead wrong. A slur DOES NOT MEAN ONE BOW - it is used in music notation for different meanings. Countless scores have slurs that last for far more notes than can be taken on one bow, and it is not a matter of a composer knowing how to write for strings. It is just as often used for PHRASING, to indicate a general legato that is accomplished with multiple bows or fingered legato. And it is not a matter of knowing how to write for strings - string players always figure out their own bowings - often with a concert master indicating how to bow a section - and what the composer writes is only a general indication of bowing. And that is why a slur marking could never be an absolute indication of bowing.