On 10/24/2013 09:34 AM, Simon Bailey wrote:
another question, in german these notes are often also called
"vorschlagnoten" [literally "before beat notes"] and are required to
be played before the beat they are associated with. are these notated
any differently? simply asking because i'm currently typesetting some
works by a young composer and he has performance notes stating these
grace notes should explicitly be performed before the beat.
so to summarize lilypond's 3 options:
\apoggiatura: take written value away from note
\acciaccatura: as fast as possible,_on the beat_
\grace: ??
I don't think you should take the german name to literally. The
performance practise of grace notes has varied throughout music history.
You have to study the practise of the period and perhaps also the
practise of individual composers to know for sure how to interpret
different scores. So to state things explicitly in a performance note
can be clarifying.
Gould also mentions some other means to make the notation clearer
(regarding before or on the beat), e.g. using accents (p. 128-129). She
actually also gives an explanation of the slash in addition to
Gilberto's excellent review: "It is common practice to place a diagonal
line through a single beam." (p. 125) Maybe the idea here is, in analogy
with the distinction between the appoggiatura and the acciaccatura, that
a single beam (i.e. eighths/quavers ) is more in need of the slash!??
Personally I think using grace notes gives the performer a certain
amount of freedom, so I don't see the need for really sharp definitions.
Peter
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