Re: Hairpins

[David Kastrup]

"Phil Holmes" <address@hidden> writes:

> ----- Original Message ----- 
> From: "David Kastrup" <address@hidden>
> To: <address@hidden>
> Sent: Sunday, October 21, 2012 5:04 PM
> Subject: Re: Hairpins
>
>
>> "Phil Holmes" <address@hidden> writes:
>>
>>> Apart from using parallel spacer rests, is there any way to make a
>>> hairpin only one note long?
>>
>> You don't mean \accent?
>
>
> Definitely not.  As has been said, it's common in vocal music to
> "hairpin down" over a single note, especially a long note.  "Hairpin
> up" is also used, but somewhat less common.  It's a shame that a
> standard piece of musical notation is not supported.

{ \endSpanners c1\< }

> See also sustain on/off on a single note.

<URL:http://lists.gnu.org/archive/html/lilypond-devel/2012-09/msg00622.html>,
another example of the "not good enough" spirit.

Could be used somewhat like

at =
#(define-music-function (parser location time event music)
  (ly:duration? ly:music? ly:music?)
  "Place @var{event} at a relative duration @var{time} in relation
to @var{music}."
  #{ \context Bottom << { \skip $time <>$event } $music >> #})

{
\at 1\!
\at 1*1/2 \>
c1\< }

(I am using \context Bottom here to avoid the creation of multiple
implicit contexts when used outside of an already started Voice).

Note that while this gives perfectly feasible results in Midi, the
graphical representation is not satisfactorily: in the absence of
explicit note columns, rigid proportional spacing would make a lot more
sense.

It might also make sense to have a single spanner available for the
up/down concept that distributes both halves of the sustain
symmetrically, possibly disregarding note columns from other voices.

-- 
David Kastrup