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Author Topic: Old ABC files  (Read 533 times)

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Roger Hare

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Old ABC files
« on: October 26, 2019, 03:49:22 PM »

I'm looking at an old ABC file. It contains a few oddities which I haven't encountered before.

For example:

Lines of music with notes bracketed with '+'

..."C"+c2C2+ CD EGGA|"C"c<d e>d cAGc|...

Strings like "$" (not a chord?).

Any ideas what these mean?

Thank you.

Roger
Odd strings such as "$", which I have also not seen before.
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Roger Hare, Urmston, Lancs., U.K. (rjhare at outlook dot com)   Manchester Morris Men   Beech Band
Music Packages (ABC/PDF/MIDI)    Thompson's Compleat Tutor for Fife (c.1765)

Steve_freereeder

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Re: Old ABC files
« Reply #1 on: October 26, 2019, 05:23:38 PM »

The plus signs with notes in between, e.g. your +c2C2+ is a now deprecated syntax for a chord, as used in abc:standard:v2.0 . Your example would now be rendered as [c2C2].

Not sure about the $ sign, but it says here in abc:standard:v2.2 that it can be used to specify a change of font (type?, size?) within an exisiting text string.
I've never needed to use this...

Hope this is of some use.
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Stiamh

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Re: Old ABC files
« Reply #2 on: October 26, 2019, 07:44:24 PM »

I'm looking at an old ABC file. It contains a few oddities which I haven't encountered before.

..."C"+c2C2+ CD EGGA|"C"c<d e>d cAGc|...

Any ideas what these mean?


Did you get the old ABC file from thesession.org by any chance? At some point an update there turned [ and ] in a tune I had posted into + and +

So, if that is where you got the tune, it could be that what is meant is [c2C2]

See: https://thesession.org/tunes/3603#comment807162
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Sebastian

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Re: Old ABC files
« Reply #3 on: October 26, 2019, 09:48:13 PM »

Not sure about the $ sign
In a discussion on the Session nine years ago it was mentioned that »a draft proposal includes the idea of using a dollar sign for a treble«. However, the link to the proposal is dead now. :-\

Roger Hare

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Re: Old ABC files
« Reply #4 on: October 27, 2019, 06:50:17 AM »

The plus signs with notes in between, e.g. your +c2C2+ is a now deprecated syntax for a chord, as used in abc:standard:v2.0 . Your example would now be rendered as [c2C2].

Not sure about the $ sign, but it says here in abc:standard:v2.2 that it can be used to specify a change of font (type?, size?) within an exisiting text string.
I've never needed to use this...
Thanks for that! I can now fix this! I think the file is pretty old - there are a few other oddities in there as well
which (I think) I can safely ignore.

Did you get the old ABC file from thesession.org by any chance? ...
No, it's actually a file from the ABCEdit database, but looking at it, it is clearly a concatenation of other files from
here and there, so I suppose some Sessions tunes may have crept in there...

...it was mentioned that »a draft proposal includes the idea of using a dollar sign for a treble«...
Thanks. I think I can probably ignore them - I hope.

There's a lot of other weird stuff in there - all sorts of unfamiliar strings entered as if they were accompaniment
chords ("...") rather than annotation strings ("^..."), and also, the file is 'fragmented', including code such as:

|..|A2 B2
c2 d2 |...|
1 A2 B
2 c2 d2 :
|2 A2 B2 c2
d2 |
]

which looks fine when put back together, but which is a bit mind-boggling when encountered 'ASIS' (that's just a
made-up example, but it's not an exaggeration).

I'm now working on the assumption that the file is so old that it contains ABC features which are now deprecated,
so i need to keep a sharp eye on this - there are certainly E: fields in there...

Thanks for the help folks.
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Roger Hare, Urmston, Lancs., U.K. (rjhare at outlook dot com)   Manchester Morris Men   Beech Band
Music Packages (ABC/PDF/MIDI)    Thompson's Compleat Tutor for Fife (c.1765)
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