For instance I have 3 groups of violins and 3 instruments in each group. I want a clean C major chord from those 3 groups. What's my best choice? To have 1 group play a C, another one an E and the last group to play a G? Or maybe have each group play the chord: 1 instrument C, 2 - E, 3 - G in every group.
What is the most common way it's done?