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ffmchar("bracketleft",8,ht#,comma_depth#); italcorr ht#*slant; x2=leftstemloc+noise; x3=leftstemloc+noise; w-x1=leftstemloc-ho+noise; w-x4=leftstemloc-ho+noise; top y1=h+noise; top y2=h+noise; bot y3=noise-d; bot y4=noise-d; draw z1--z2--z3--z4; labels(1,2,3,4); endchar;