Re: snippet: standard staff sizes

[Noeck]

Thanks Kieren,

I have some questions about the staff sizes:

1. Is there a world wide standard for staff sizes?

2. Are "Rastral Staff Sizes" always the same? I once found a different
list of rastral sizes. The differences are on the level of 2%, but I
wonder if there is some official reference.

3. Why does LilyPond suggest other staff sizes?
http://lilypond.org/doc/v2.16/Documentation/notation/setting-the-staff-size.html
Where do they come from?

4. Are "Rastral Staff Sizes" just a result of the fact that the tools
for hand-engraved music can not scale arbitrarily?
Or from the computer-based point of view: Is anything wrong with
choosing a staff size of 19.1?

TIA
Joram



If anyone is interested, I once combined a list of rastral sizes, the LP
feta sizes and integer pt sizes into this table (sorry, the purpose is
in German).


Rastral         Ly/TeX  DTP             
/font   mm      pt      pt      inch    Purpose
        3,87    11,00   10,96   0,1522  
feta11  3,94    11,22   11,18   0,1553  Taschenparituren
        4,22    12,00   11,96   0,1660  
8       4,32    12,29   12,24   0,1700  Incipits, Ossia-Systeme
feta13  4,43    12,60   12,55   0,1743  
        4,57    13,00   12,95   0,1799  
7       4,83    13,73   13,68   0,1900  Taschenpartituren, Stichnoten
        4,92    14,00   13,95   0,1937  
feta14  4,97    14,14   14,09   0,1957  
        5,27    15,00   14,94   0,2076  
feta16  5,58    15,87   15,81   0,2196  
6       5,59    15,90   15,84   0,2200  Studienpartituren; Chorwerke
        5,62    16,00   15,94   0,2214  
        5,97    17,00   16,94   0,2352  
5       6,10    17,34   17,28   0,2400  Partituren; Blasmusik
feta18  6,26    17,82   17,75   0,2466  Liederbücher
        6,33    18,00   17,93   0,2491  
4       6,35    18,07   18,00   0,2500  Chor, Partituren; Orgelwerke
        6,68    19,00   18,93   0,2629  
3       6,86    19,51   19,44   0,2700  Druckausgaben, Partituren
feta20  7,03    20,00   19,93   0,2767  Orchesterstimmen
2       7,11    20,24   20,16   0,2800  Instrumentalstimmen;Konzertwerke
        7,38    21,00   20,92   0,2906  
        7,73    22,00   21,92   0,3044  
1       7,87    22,40   22,32   0,3100  Elementare Schulwerke
feta23  7,89    22,45   22,37   0,3106  
        8,08    23,00   22,91   0,3183  
        8,44    24,00   23,91   0,3321  
        8,79    25,00   24,91   0,3459  
feta26  8,86    25,20   25,11   0,3487  
        9,14    26,00   25,90   0,3598  
0       9,14    26,02   25,92   0,3600  Kinderausgaben; Schreibblöcke