> The code: 
>    (6abc``def 
> is (normally) interpreted as 6 notes in the time of 2 notes.

I know.  It shouldn't be, that's nothing like normal musical practice.

> Try use a more precise syntax for tuplets, like: 
>    (6:4abc``def 
> which stands for 6 notes in the time of 4 notes; 
> or the complete form: 
>    (6:4:6abc``def

Here are the results of my attempts to get round this.  (It's
rhythmically more complicated than I thought at first - the
sextuplets are really 2+2+2, not 3+3, so it's a three-against-
two pattern throughout - I've revised the spacing to reflect
that).  Taking just the first four bars of the upper voice:

X:1
T:Oh Callar Spirlings (var 4) 1st try
C:Domenico Corri
% display correct; plays at double speed
M:3/4
L:1/16
Q:1/4=90
K:D Minor
A2|(6d^c`dA`Bc (6da``gf```ed  (6^cd`eA`Bc|(6d^c`fe``fe (6a^g`ad'`^c'd'  f'2 z2  
|
   (6c=B`ce`de (6g^f`gc'`=bc'    d'2 z2  |(6d^c`dA`=Bc (6da``gf```ed  
(6cd`eA`Bc|

X:2
T:Oh Callar Spirlings (var 4) 2nd try
C:Domenico Corri
M:3/4
L:1/16
% a hack, the rhythm is wrong for a human player
% plays at the right speed, but only half the triplet signs display
Q:1/4=90
K:D Minor
A2|(3d^cd`(3ABc (3dag``(3fed   (3^cde``(3ABc|(3d^cf`(3efe  (3a^ga`(3d'^c'd'  
f'2   z2 |
   (3c=Bc`(3ede (3g^fg`(3c'=bc'   d'2    z2 |(3d^cd`(3A=Bc (3dag``(3fed    
(3cde`(3ABc|

X:3
T:Oh Callar Spirlings (var 4) 3rd try
C:Domenico Corri
M:3/4
L:1/16
% display totally messed up, playback wrong, it's not reading (6:4 as (6:4:6
Q:1/4=90
K:D Minor
A2|(6:4d^c`dA`Bc (6:4da``gf```ed  (6:4^cd`eA`Bc|(6:4d^c`fe``fe (6:4a^g`ad'^c'd' 
   f'2 z2  |
   (6:4c=B`ce`de (6:4g^f`gc'`=bc'      d'2 z2  |(6:4d^c`dA`=Bc (6:4da` gf``ed  
(6:4cd`eA`Bc|

X:4
T:Oh Callar Spirlings (var 4) 4th try
C:Domenico Corri
M:3/4
L:1/16
% ludicrously verbose and unreadable; display and playback correct
Q:1/4=90
K:D Minor
A2|(6:4:6d^c`dA`Bc (6:4:6da``gf```ed  (6:4:6^cd`eA`Bc|(6:4:6d^c`f`e``fe 
(6:4:6a^g`ad'^c'd'       f'2 z2  |
   (6:4:6c=B`ce`de (6:4:6g^f`gc'`=bc'        d'2 z2  |(6:4:6d^c`d`A =Bc 
(6:4:6da``gf``ed   (6:4:6cd`eA`Bc|

X:5
T:Oh Callar Spirlings (var 4) 5th try
C:Domenico Corri
M:3/4
L:1/16
% working round the verbosity with a macro hack
m:s = (6:4:6
Q:1/4=90
K:D Minor
A2|sd^c`dA`Bc sda``gf````ed  s^cd`eA`Bc|sd^c`fe``fe sa^g`ad'^c'd'  f'2 z2  |
   sc=B`ce`de sg^f`g`c'`=bc'   d'2 z2  |sd^c`dA`=Bc sda``gf``ed   scd`eA`Bc|

X:6
T:Oh Callar Spirlings (var 4) 6th try
C:Domenico Corri
M:9/8
% rewrites the original but possibly a better solution in this case
L:1/16
Q:3/8=90
K:D Minor
A2|d^c`dA`Bc da``gf````ed  ^cd`eA`Bc|d^c`fe``fe a^g`ad'^c'd' f'3 z3  |
   c=B`ce`de g^f`g`c'`=bc'  d'3 z3  |d^c`dA`=Bc da``gf``ed   cd`eA`Bc|

Who on earth would expect the note lengths in (6abcdef to be different
from those in (3abc(3def ?  This is just a glaring bug in the standard,
no pre-existing notation works that way.


: The back-quote character appears on the standard Mac keyboard on the 
: upper-leftmost key, above the tab - very convenient. The character
: does appear to be just ignored [...]
: The effect is to allow inclusion of a visual marker where emphasis 
: might be needed - could be useful.

Not so much emphasis as a substitute for a non-breaking space
(which can't be done portably, though most character sets have
a code for one somewhere).  I suggested it because it was the
nearest-to-invisible character we had left in ASCII.  (The
alternative would have been to let people use their native non-
breaking space and let conversion utilities sort out the OS and
font dependencies - if our experience with line breaks is anything
to go by, that would have had John Chambers chewing the carpet).


-----------------------------------------------------------------------------
Jack Campin: 11 Third Street, Newtongrange, Midlothian EH22 4PU; 0131 6604760
<http://www.purr.demon.co.uk/jack>     *     food intolerance data & recipes,
Mac logic fonts, Scots traditional music files, and my CD-ROM "Embro, Embro".
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