- Use explicitly instantiated voices (thanks Neil)
First, it becomes a better example to show newcomers.
It also ensures the voice contexts remain visible so collision
avoidance works correctly, even if a break occurs at the end
of measure 3. However, if the overridden line-width is
removed the break occurs after measure 2, and causes the
phrasing slur to collide with the 6/4 time signature, even with
explicit voice declarations.