input musicdef
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                             %
%                   BOGEN (KONVEX)                            %
%                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

def drawslurs(expr i,j) =
   save  jj,factor, length, height;
   numeric jj, absp, length, height, factor;
   factor:= 1/6;
   height = i*1/2nhh#;
   length = j*nhw#;
   if  j<4 : jj := (j*(j-1)+(i-1))*8
   else:    jj := (i-1)*8+(j mod 2)*64+floor((j-2)/2);fi;
   beginchar(jj, length, height, 0);
     clear;
     z2r = (w,h);
     z1l = origin;
     absp := abs((-h,w));
     if (factor*absp)>2nhh : factor:= 2nhh/absp fi;
     z3r = 1/2z2l+factor*(-h,w);
     penpos1(thinwidth,90);
     penpos2(thinwidth,90);
     penpos3(5/12beamht,90);
     currentpen := pencircle xscaled thinwidth yscaled beamht ;
     penstroke z1e..z3e..z2e; %statt dir 30
   endchar;
enddef;

%%%%%%%%%%%%%%%%%%%%%%%
% positive Steigungen %
%%%%%%%%%%%%%%%%%%%%%%%

for j= 1 upto 17:
for i= 1 upto min(2j,8):
drawslurs(i,j);
endfor;endfor;
end;

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