Re: [Lilypond-auto] Issue 3944 in lilypond: Match PhrasingSlur thickness to Slur and Tie.

[lilypond]

Comment #5 on issue 3944 by address@hidden: Match PhrasingSlur  
thickness to Slur and Tie.
http://code.google.com/p/lilypond/issues/detail?id=3944

William Gamble:
p.101: "The lozenge graver has a more obtuse V-shape in the blade than the  
tint graver.  It is, in fact, in the form of a complete lozenge in section,  
the lower of the two acute angles being used for the cutting.  Naturally,  
from its shape, it cuts a broader line than the tint graver, and the more  
deeply it is forced into the metal, the more broadly it cuts.  It is used  
for engraving the slurs, for which the tool must enter lightly, penetrate  
more deeply for the middle part of the curve, and run out lightly."

p.102: "Flat gravers have parallel sides, cutting like a chisel, so that  
the line is of the same thickness as the tool, and the bottom of the cut is  
flat.  These tools are used for cutting the ties of the connected quavers.   
Several sizes are required to suit the different sizes of notes, the ties  
being thickened in proportion to the size."

p.107: "Whilst the employer usually provides the punches, the engraver  
generally prefers to have a set of slur punches of his own, as they are not  
expensive, rather than have to be constantly getting them from other  
engravers who may be using them.  There are about eleven sizes."

p.139: "The small slurs are punched, but the larger ones are cut with the  
lozenge graver, although punches can be obtained for some of them."

p.148: "The ties are cut with scorpers (flat gravers), which have a flat  
back.  These vary in thickness according to the width to be cut, this  
naturally depending on the size of the notes.  The tool is given a slight  
oscillatory movement by a turn of the wrist.  This aids the tool in cutting  
and gives to the bottom of the cut a waviness which helps retain the  
printing ink."

p.149: "The large slurs are usually cut with the lozenge graver.  Small  
slurs are, however, generally punched.  It is necessary in cutting a slur  
with the graver to begin finely, pushing the blade first whilst it is held  
level, then inclining it little by little, so that the cheeks of the tool  
sink more and more deeply into the metal, thus forming the thick part of  
the stroke, and finally, levelling the blade again, so as to finish with  
the same fineness as at the beginning of the cut."
_____________________________________________

Ted Ross:
p.136: "Though ties, slurs, and phrase marks are constructed in basically  
the same way, each performs a different function.  [...]  Plate engravers  
punch dies into metal plates to achieve ties and short slurs.  [...]   
Longer ties are cut with a tool called the `graver'."

p.139: "The short slur is constructed in the same way as the tie, although  
its function is entirely different."

p.140: "A long slur is a straight line with both ends bending uniformly  
towards the enclosed notes."  (nice examples on p.142)
_____________________________________________

Kurt Stone:
[he never specifically discusses the design or thickness of slurs, ties,  
and phrase marks]
_____________________________________________

Elaine Gould:
p.60: "The tie and slur (phrase mark) have the same design, although ties  
tend to have a flatter arc, to allow room for slurs and to differentiate  
the two."

p.109: "The slur is the same tapered arc as the tie, although the tie may  
have a flatter curve to allow room for slurs and to differentiate the two.   
When notes at the beginning and end of a slur are the same pitch, the slur  
may look identical to a tie because it will, like the tie,be completely  
symmetrical."

p.113: [section labeled "Slurs within slurs" does not mention any change in  
design, thickness, etc.]

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