Hi Don,<br><br><div class="gmail_quote">On Tue, Nov 6, 2012 at 8:54 PM, Byrd, Donald A. <span dir="ltr"><<a href="mailto:donbyrd@indiana.edu" target="_blank">donbyrd@indiana.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Finally (and I suspect MEI already handles this), I'd like to point out that two sizes of staves -- "normal" and "cue-size" -- aren't always enough; there are published performing editions that use three staff sizes. (In fact, I wouldn't be surprised if editions with _four_ sizes exist, though I don't know of any.)</blockquote>
</div><br><div>I have seen at least three sizes in a score before, and this would theoretically allow for four sizes:</div><div><br></div><div>In a piano/instrumental score, the piano part typically has the instrumental part displayed above it in a slightly smaller size. And I have seen ossia parts for the instrumental staff which in turn would be smaller than the instrumental staff size. So if the piano part also had an ossia, then there would be four staff sizes, unless the ossia for the piano is the same size as the instrumental part (which it probably should).</div>
<div><br></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.800000190734863px;background-color:rgb(255,255,255)">> 1/72nd inch, which is not exactly the traditional value)</span></div>
<div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.800000190734863px;background-color:rgb(255,255,255)"><br></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.800000190734863px;background-color:rgb(255,255,255)">You must be older than me, as I didn't know that :-)</span></div>
<div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.800000190734863px;background-color:rgb(255,255,255)"><br></span></div><div><a href="http://en.wikipedia.org/wiki/Point_(typography)">http://en.wikipedia.org/wiki/Point_(typography)</a></div>
<div><span style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;background-color:rgb(255,255,255)"><br></span></div><div><span style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;background-color:rgb(255,255,255)"><<In the late 1980s to the 1990s, the traditional point was supplanted by the desktop publishing point (also called the </span><a href="http://en.wikipedia.org/wiki/PostScript" title="PostScript" style="text-decoration:none;color:rgb(11,0,128);background-image:none;background-color:rgb(255,255,255);font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px">PostScript</a><span style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;background-color:rgb(255,255,255)"> point)>></span></div>
<div><span style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;background-color:rgb(255,255,255)"><br></span></div><div><span style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;background-color:rgb(255,255,255)">But then it seems that you need to be careful of your definition of the inch which has also changed:</span></div>
<div><span style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;background-color:rgb(255,255,255)"><br></span></div><div><span style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;background-color:rgb(255,255,255)"><<The </span><a href="http://en.wikipedia.org/wiki/Desktop_Publishing" title="Desktop Publishing" class="mw-redirect" style="text-decoration:none;color:rgb(11,0,128);background-image:none;background-color:rgb(255,255,255);font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px">desktop publishing</a><span style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;background-color:rgb(255,255,255)"> point (DTP point) is defined as 1/72 of the Anglo-Saxon compromise inch of 1959 (25.4 mm) which makes it </span><b style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;background-color:rgb(255,255,255)">0.013<span style="text-decoration:overline">8</span> inch</b><span style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;background-color:rgb(255,255,255)"> or </span><b style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;background-color:rgb(255,255,255)">0.352<span style="text-decoration:overline">7</span> mm</b><span style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;background-color:rgb(255,255,255)">.>></span></div>
<div><br></div><div>But the pre-PostScript point size did not seem to be standardized:</div><div><br></div><div><span style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;background-color:rgb(255,255,255)"><<By the end of the 19th Century, it had settled to around 0.35 to 0.38 mm, depending on one’s geographical location.>></span></div>
<div><br></div><div>And here is the one you must be referring to which I vaguely remember seeing before:</div><div><br></div><div><<<span style="background-color:rgb(255,255,255);font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px">In 1886, the Fifteenth Meeting of the Type Founders Association of the United States approved the so-called</span><span style="background-color:rgb(255,255,255);font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px"> </span><i style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px">Johnson pica</i><span style="background-color:rgb(255,255,255);font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px"> </span><span style="background-color:rgb(255,255,255);font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px">be adopted as the official standard. This makes the traditional American printer’s foot measure 11.952 inches (303.6 mm), or 303.5808 mm exactly, giving a point size of approximately</span><span style="background-color:rgb(255,255,255);font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px"> </span><span class="frac nowrap" style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px;white-space:nowrap"><sup style="line-height:1em">1</sup>⁄<sub style="line-height:1em">72.27</sub></span><span style="background-color:rgb(255,255,255);font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px"> </span><span style="background-color:rgb(255,255,255);font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px">of an inch, or</span><span style="background-color:rgb(255,255,255);font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px"> </span><b style="font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px">0.3515 mm</b><span style="background-color:rgb(255,255,255);font-family:sans-serif;font-size:12.800000190734863px;line-height:19.200000762939453px">.</span></div>
<p style="margin:0.4em 0px 0.5em;line-height:19.200000762939453px;font-family:sans-serif;font-size:12.800000190734863px;background-color:rgb(255,255,255)">This is the size of the point in the <a href="http://en.wikipedia.org/wiki/TeX" title="TeX" style="text-decoration:none;color:rgb(11,0,128);background-image:none;background-repeat:initial initial">TeX</a> computer typesetting system by <a href="http://en.wikipedia.org/wiki/Donald_Knuth" title="Donald Knuth" style="text-decoration:none;color:rgb(11,0,128);background-image:none;background-repeat:initial initial">Donald Knuth</a>, which predates PostScript slightly. Thus the latter unit is sometimes called the <b>TeX point</b>.>></p>
<p style="margin:0.4em 0px 0.5em;line-height:19.200000762939453px;font-family:sans-serif;font-size:12.800000190734863px;background-color:rgb(255,255,255)"><br></p><div>-=+Craig</div><div><br></div>