Arent Storm wrote:

>* ~ I always thought that ~ is used for a prall-trill by default.
>Hardly anybody will know what an Irish-roll is (is it eatable?)

I'll bet there are at least a hundred times as many abc users
who know what an Irish Roll is as there are those who recognise
what a prall-trill is.  Actually, I think the English word for it
is Pralltriller, but most people would call it an upper mordent,
and in abc it's normally represented by the letter P.

The meaning of ~ is context-dependent.  In classical music
it will mean a turn (that's what the symbol looks like), and in
most places a turn symbol in the staff notation will be correct.
What kind of twiddle gets played depends on the tradition that
the music comes from.


>* clefs:
>Is "K: Am transpose=-2 " illegal where "K: Am treble transpose=-2 " is not

No.  transpose (or t=) is a directive which affects only playing and
has nothing to do with clefs, so both are legal.

>''clef'' starts the specication (I'd rather like to see clef=clefname than clef
>alone

Why?  The clef names "treble", "alto", "tenor" and "bass" are all unique
identifiers which can't mean anything but a clef, so clef= is redundant.
More complicated clef specifications should use the clef= syntax though.

>*voices
>state that all voices to be mentioned in the abc-body have to be declared
>in the
>header when using the [V:ID] syntax, where each ID will be referenced over and
>over.

It's good practice, but I don't see why it should be mandatory.

Phil Taylor


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