Re: Beaming eighth notes in threes in 3/4 time

[Phil Holmes]

----- Original Message ----- 
From: "Nick Payne" <address@hidden>
To: <address@hidden>
Sent: Sunday, February 20, 2011 3:37 AM
Subject: Beaming eighth notes in threes in 3/4 time


> Shouldn't this example have the notes in the second bar beamed three
> together and three together? What I'm getting is three, then one, then 
> two:
>
> \version "2.13.50"
>
> \relative c' {
>     \time 3/4
>     c8 c c c c c
>     \set beamExceptions = #'((end . (((1 . 8) . (3 3)))))
>     c c c c c c
> }
>
> Nick
I'm no expert on this, but have just given the docs a good read, and the 
Notation Ref says:

"By default baseMoment is set to one over the denominator of the time 
signature" - so in this case, it's a quarter note.  You're trying to set 
beams on eighth note boundaries, so it won't work.  You also need to add 
\set Timing.beamExceptions = #'() to stop beamExcpetions taking over.  That 
said, I still think there may be a bug here, and would welcome a comment 
from a beamMeister.  The following gives the attached image:

\relative c' {
    \time 3/4
    c8 c c c c c
    \set Timing.baseMoment = #(ly:make-moment 1 8)
    \set Timing.beamExceptions = #'()
    \set Timing.beatStructure = #'(3 3)
    c c c c c c
    \set Timing.beatStructure = #'(0 3 3)
    c c c c c c
}

--
Phil Holmes

BeamExceptions.png
Description: PNG image