>On Thu 04 Jan 2001 at 09:48AM +0000, Phil Taylor wrote:
>>
>> It was probably something like this which prompted Jean-
>> Francois to suggest that a P: field should reset the voice
>> number to 1. In viewer programs the P: field is simply a
>> label to be written above the first voice, but in player
>> programs it's a flow control device used to determine the
>> order in which parts are played, so resetting the voice
>> number to 1 is a very bad idea here.
>
>Actually, it is what abc2midi does. abc2midi has had a V: field
>for a long time (and I think it was the first program to have
>it). The abc2midi documentation describes some of the intricacies
>of the fields interact. For example, a P: field in multi-voice
>abc provides a good point for checking that all voices have
>the same playing time.
Ouch! What happens when you have a P: field in the middle of
a line of music? Do all voices still have to have a P: field
at the same time point?
>> However, perhaps we do need a way of indicating that a field
>> placed in any voice should be applied to all voices at that
>> time point. This requires a slightly different way of writing
>> fields, possibly something like:
>
>The problem with this idea is that it then becomes possible to
>re-set the key in one voice from an instruction in the middle of
>another voice and it will be very difficult for the human reader
>to work out what is going on.
>
The idea is that such fields exist outside of the individual
voices, so you would normally put one on a line by itself, following
a block of complete voices and applying to all voices in the
following block. Is that the way in which abc2midi interprets
the P: field?
Phil Taylor
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