PostScript lines
…add solid, dashed, and dotted lines using embedded Postscript.
…set Staff.instrumentName = "Violin I" e1 | f_\markup { \postscript "0.6 setlinewidth 1 -0.5 moveto -2 … …moveto 0 -10 rlineto stroke" } a1 | b_\markup { \postscript "0.3 setlinewidth 1 setlinecap [0 1.5] … …moveto 0 -11 rlineto stroke" } c1 | d-\markup { \postscript "0.3 setlinewidth 1 setlinecap [0 1] 0 …