AW: [abcusers] Re : suggestions for [A4A2] notation

2002-08-12 Thread Toni Schilling

Jack Campin wrote:
 Or did I get the semantics wrong?  I'd expect [d6z2]2 to mean the same
 as [d12z4] (whatever *that* meant)

Sorry, you are wrong. If the ]2 is just multiplied to the length
of the notes inside the chord, there would be no benefit of the [..]2
notation.
You can write better the same way you did: [d12z4]

I meant that each note *in* the chord has the length as specified there
and the length after the ] doesn't change that.
The length after the ] gives the time when the *next* note after the
chord starts.
So with M:4/4 and L:1/4
 [A4C4E4]2 a/4a/4a/4a/4a/4a/4a/4a/4
means play the AMinor for 4 beats
but on the 3rd beat start a tremolo on the note a until the end of the
bar.
You can not write this with any of the discussed chord-length-rules
because each note in the chord has length 4.
Of course you can whrite the same as
 [z2A4C4E4] a/4a/4a/4a/4a/4a/4a/4a/4
suppossed the the chord-length is taken from the 1st note and
rests in chords are allowed.

Which one is more readable or easier to maintain is a matter of taste.

But just now came in my mind: what if you could write this
 [A4E4C2]0 ab[C,2]0c'd'
Supposed the length zero is allowed, 
this whould mean start A4 E4 C2 on beat one change the C to a C, one
beat three.
And on top play a melody abc'd' for the whole bar.
Ok, take this as a joke.
But why not allow the syntax. It's consistent whith the single note
length modifier
so it seems to me its easy to understand. There are no ambiguities in
what it means
so any software can easy figure out what to print or to play.

Toni
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Re: AW: [abcusers] Re : suggestions for [A4A2] notation

2002-08-12 Thread Jack Campin

 Or did I get the semantics wrong?  I'd expect [d6z2]2 to mean the same
 as [d12z4] (whatever *that* meant)
 Sorry, you are wrong. If the ]2 is just multiplied to the length
 of the notes inside the chord, there would be no benefit of the [..]2
 notation.

There is a considerable benefit: brevity.  If you've written many
melodybass pieces, you'll have done a helluva lot of [G,,8B,,8D,8]
stuff that would have been more readably written [G,,B,,D,]8 .  We
have had several postings in this list over the years from people
who've tried to do that and been surprised to find it didn't work.
It's so intuitively sensible that it *ought* to work.


 I meant that each note *in* the chord has the length as specified
 there and the length after the ] doesn't change that.
 The length after the ] gives the time when the *next* note after the
 chord starts.
 So with M:4/4 and L:1/4
 [A4C4E4]2 a/4a/4a/4a/4a/4a/4a/4a/4
 means play the AMinor for 4 beats
 but on the 3rd beat start a tremolo on the note a until the end of the
 bar.
 You can not write this with any of the discussed chord-length-rules
 because each note in the chord has length 4.

Using my absorptive-tie scheme:

[A2--C2--E2--]
[a//A//--C//--E//--][a//A//--C//--E//--][a//A//--C//--E//--][a//A//--C//--E//--]\
[a//A//--C//--E//--][a//A//--C//--E//--][a//A//--C//--E//--][a//A//C//E//]

It's about the worst possible case for that, but it can represent it.
Macros would make it more readable, but this is an obvious case where
using separate voices is the way to go.


 Of course you can whrite the same as
 [z2A4C4E4] a/4a/4a/4a/4a/4a/4a/4a/4
 suppossed the the chord-length is taken from the 1st note and
 rests in chords are allowed.

That's completely counterintuitive - a rest that doesn't get either
played or displayed and is just there to control the playing and
display of other notes?


 But why not allow the syntax. It's consistent whith the single note
 length modifier so it seems to me its easy to understand. There are
 no ambiguities in what it means so any software can easy figure out
 what to print or to play.

Software might manage it but I can't see many humans doing so.


=== http://www.purr.demon.co.uk/jack/ ===


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AW: [abcusers] Re : suggestions for [A4A2] notation

2002-08-09 Thread Toni Schilling

Bryan Creer wrote:
 
 However, I am a bit confused by  -
 
 So if you need the  A4  as first listed note in the chord
 for some other reason (e.g. to indicate the melody),
 you can give the chord an other length whith  ]2
 
 I had assumed the number after the chord was intended to 
 represent its length 
 within the melody so I am not sure what this means.

John answered for me ...

John Chambers wrote:
 Well, I can think of a simple example of how one might use this:
   [A4G2E2]2[F2D2]
 This would have a 4-count melody note above  the  [G2E2][F2D2]  chord
 change.  With L:1/8, the first chord could be drawn on a single stem,
 with an open oval for the A4 note and filled ovals for the G2 and  E2
 notes.  This sort of notation isn't at all unusual in keyboard music.
 The abc seems quite readable to me.

That's exactly what I meant.


Starling wrote:
 It could be too flexible though.  How is [A4G2E2]3[F2D2] supposed to
 be interpreted?

:-) play A4,G2 and E2 on beat one hold it for 4,2 and 2 beats.
than start playing F2 and D2 on the 4rd beat (after a z3) and hold it
for two beats.
An accordion surly can do that, but if you should write it down this way
?

Of course this syntax gives much freedom to write nonsens. But this is
not the point.
The syntax should provide a way to write something meaningful in a
readable form.
It is for the software to find out the meaning or to complain if it
doesn't understand.
But I don't think that you can define a syntax that prevents you from
writing nonsens.



Bryan Creer wrote:
 I'm afraid I got rather lost by your named nesting idea as well.
John Chambers wrote:
 Me too.

Hmmm... see you in an other thread.

Toni
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