Since the fix for #4355, respectively commits 8fa2d858 and 0382ed88, it
is not possible anymore to subdivide beams that are longer than a
quarter note.
\version "2.19.32"
{
\set subdivideBeams = ##t
% This is correctly subdivided
\set baseMoment = #(ly:make-moment 1 8)
\repeat unfold 16 c'16
% This should always keep one beam
\set baseMoment = #(ly:make-moment 1 4)
c' 16 [ \repeat unfold 14 c' c' ]
}
The behaviour is consistent with the feature request for #4355, namely:
the dividing beam should reflect the length of the following group,
which is 1/4 and results in no beam.
However, I think that this behaviour should be changed once more in that
subdivideBeam leaves *at least* one beam.
I admit I don't understand the modified code as per 0382ed88:
// Set the count on each side of the stem
// We need to run this code twice to make both the
// left and the right counts work properly
for (int i = 0; i < 2; i++)
for (vsize i = 1; i < infos_.size () - 1; i++)
{
Direction non_flag_dir = other_dir (flag_directions[i]);
if (non_flag_dir)
{
int importance = infos_[i + 1].rhythmic_importance_;
int count = (importance < 0 && options.subdivide_beams_)
? subdivide_beam_count
: min (min (infos_[i].count (non_flag_dir),
infos_[i + non_flag_dir].count
(-non_flag_dir)),
infos_[i - non_flag_dir].count
(non_flag_dir));
infos_[i].beam_count_drul_[non_flag_dir] = count;
}
}
so I don't know whether it would be better to
- only consider values smaller than 1/4 in the calculation or
- ensure (in the last line?) that at least one beam is left.
I hope this is an easy fix.
Urs
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