Re: Better way to get correct slur shapes?

[Simon Albrecht]

On 17.02.2018 17:38, Stefano Troncaro wrote:
> Hi Knute, Simon,
>
> A little question if you don't mind, what is the override to 
> NoteColumn.ignore-collision for? I took it out of your example and I 
> don't see a difference in the results.

Hmmm, that’s just something I habitually insert whenever I use 
\hideNotes, since sometimes the hidden notes will still distort spacing. 
I didn’t check for this here.

Best, Simon

> 2018-02-16 10:21 GMT-03:00 Knute Snortum <address@hidden 
> <mailto:address@hidden>>:
>
>     Thanks Simon, that's a great tool.
>
>     I changed the function just a bit so that the stems of the eighth
>     notes in the lower voices aren't so long:
>
>     %%%%
>     dummy =
>     #(define-music-function (mus) (ly:music?)
>        #{
>          \override NoteColumn.ignore-collision = ##t
>          \voiceTwo
>          \once \omit Stem
>          \once \omit Flag
>          $mus
>          \revert NoteColumn.ignore-collision
>          \voiceOne
>        #})
>     %%%%
>
>
>     ---
>     Knute Snortum
>     (via Gmail)
>
>     On Thu, Feb 15, 2018 at 9:35 AM, Simon Albrecht
>     <address@hidden <mailto:address@hidden>> wrote:
>
>         Hi Knute,
>
>         how about this?
>
>         %%%%%%%%%%%%%%%%%%%%
>         \version "2.19.80"
>         \language "english"
>
>         dummy =
>         #(define-music-function (mus) (ly:music?)
>            #{
>              \hideNotes
>              \override NoteColumn.ignore-collision = ##t
>              \voiceTwo
>              $mus
>              \unHideNotes
>              \revert NoteColumn.ignore-collision
>              \voiceOne
>            #})
>
>         \relative {
>           \time 6/8
>           \key g \minor
>
>           r8 << { <df'' f>4*1/2( \dummy f,8) } \\ { af8 f } >>
>
>           r8 << { <ef' g>4*1/2( \dummy g,8) } \\ { bf8 g } >> |
>         }
>         %%%%%%%%%%%%%%
>
>         I think, the slur shapes Lily chooses there are quite neat.
>
>         Best, Simon
>
>
>
>         On 15.02.2018 18:02, Knute Snortum wrote:
>
>             I am hoping to get some feedback from the power LilyPond
>             users on this list.
>
>             I have a slurring problem that's not terribly difficult to
>             solve, but I'm wondering if there's a better way to do it.
>             Here's my example:
>
>             %%%
>             \version "2.19"
>             \language "english"
>
>             slurShapeA = \shape #'((0.75 . 2) (0.5 . 1.5) (0.33 . 1)
>             (0.25 . 0)) \etc
>
>             \relative {
>               \time 6/8
>               \key g \minor
>               % Could something like this work?
>               r8 << { <df'' f>4 } \\ { af8 f } \\ { \voiceTwo
>             \hideNotes f'8 ^( f, ) } >>
>               % This works, but it's tedious and brittle
>               r8 << { <ef' g>4 } \\ { bf8 -\slurShapeA ^( g ) } >> |
>             }
>             %%%
>
>             In the piece I'm engraving there are dozens of this kind
>             of slurs.  In the second half of the measure, I've used
>             the \shape function to modify the slur between the two
>             eighth notes to look like it starts at the quarter note in
>             the other voice. I can do it this way, but it will take
>             dozens of shapes, all controlled manually.  This is a
>             tedious and brittle solution, because any change in the
>             page layout that affects how the measures are spaced may
>             change all the slur shapes (like switching from letter
>             size to A4).
>
>             So I was hoping I could use some hidden notes in a third
>             voice to make the slur, but as you can see from the first
>             half of the measure, it's not going very well.  Can this
>             or some other solution work?
>
>             ---
>             Knute Snortum
>             (via Gmail)
>
>
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>
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