+\version "1.7.18"
\header{
- texidoc = "Concave beams should be horizontal. However, what exactly
+
+texidoc = "Concave beams should be horizontal. Informally spoken,
+ concave refers to the shape of the notes that are opposite a
+ beam. If an up-beam has high notes on its center stems, then we call
+ it concave. This example shows borderline cases. Only the beams
+ that are marked `horiz' should be printed horizontally. " }
+
+
+%{
+ However, what exactly
it is that makes a beam concave is still unclear.
Beams 1 and 3 should be sloped, 2 and 4 should be horizontal. Two
sane attempts of calculating concaveness of a beam fail to distinguish
beams this way."
+%}
-}
\score{
\notes\relative c'{
- \property Voice.Beam \set #'debug-concave = ##t
-
-%%% \property Voice.Beam \set #'concaveness = #0.8
-%%% \property Voice.Beam \set #'concaveness-no-slope = ##f
-%%% \property Voice.Beam \set #'concaveness-square = ##f
-
-
- \property Voice.Beam \set #'concaveness-no-slope = ##t
- %%\property Voice.Beam \set #'concaveness = #0.25
-
- %% this gives what baerenreiter does, but it's too kludgy
- %% to make much sense
- \property Voice.Beam \set #'concaveness-square = ##t
- \property Voice.Beam \set #'concaveness = #0.08
-
%% This case seems easy: second beam should be horizontal.
%% SCS-I Menuet I, m15
%% sloped
%% slope = -0.5ss
- %% concaveness: 0.50
- %% concaveness-no-slope: 0.25
- %% concaveness-no-slope^2: 0.06
+ %% concaveness: 0.06
\clef bass
\time 3/4
\key g\major
%% SCS-I Menuet II, m20
%% horizontal
%% slope = 0
- %% concaveness: 1.12
- %% concaveness-no-slope: 0.38
- %% concaveness-no-slope^2: 0.09
+ %% concaveness: 0.09
\key f\major
fis,^"horiz." a c es d c
%% Sarabande: m24
%% sloped
- %% concaveness: 0.75
- %% concaveness-no-slope: 0.00
- %% concaveness-no-slope^2: 0.00
+ %% concaveness: 0.00
\stemUp
- [d,16 a' b cis]
+ d,16-[ a' b cis]
%% Sarabande: m25
%% horizontal
- %% concaveness: 0.50
- %% concaveness-no-slope: 0.25
- %% concaveness-no-slope^2: 0.12
- [a'16^"horiz." b c b]
+ %% concaveness:a: 0.12
+ a'16-[^"horiz." b c b]
% Hmm. Concaveness of both: 1.75
% %% SCS-VI Prelude, m81
% %% slope = 0.0
% \stemBoth
% \key d\major
-% [e,8 cis a']
+% e,8-[ cis a']
% %% SCS-VI Prelude, m82
% %% slope = 0.1ss (possibly b.o. context?)
-% [g, e' cis]
+% g,-[ e' cis]
+
+%%% Han-Wen: this should be concave
+ a,16-[^"horiz." a' a a]
+
+ \clef treble
+
+%%%% This should not be concave (hwn)
+ [\stemUp bes8 \stemDown d'8 bes8]
}
\paper{
- linewidth = -1.0
+ raggedright = ##t
}
}