-%{
- 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{
- \relative c'{
-
-%% This case seems easy: second beam should be horizontal.
-
- %% SCS-I Menuet I, m15
- %% sloped
- %% slope = -0.5ss
- %% concaveness: 0.06
- \clef bass
- \time 3/4
- \key g\major
- a8 g fis e b dis
-
- %% SCS-I Menuet II, m20
- %% horizontal
- %% slope = 0
- %% concaveness: 0.09
- \key f\major
- fis,^"horiz." a c es d c
-
-%%% Sarabande: the first beam, obviously more concave, is not horizontal,
-%%% but is matched with the next beam in the piece: context.
-
- %% Sarabande: m24
- %% sloped
- %% concaveness: 0.00
- \stemUp
- d,16[ a' b cis]
-
- %% Sarabande: m25
- %% horizontal
- %% 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']
-
-% %% SCS-VI Prelude, m82
-% %% slope = 0.1ss (possibly b.o. context?)
-% g,[ e' cis]
-
-
-%%% Han-Wen: this should be concave
- \break
- a,16[^"horiz." a' a a]
- \clef treble
-
-%%%% This should not be concave (hwn)
- \stemUp bes8[ \stemDown d'8 bes8]
-
+resetMeasure = \set Score.measurePosition = #(ly:make-moment 0 1)
+
+%% examples from Ross.
+rossFourBeams =\relative c'' {
+ \time 2/4
+ c8[ e b c]
+ b[ c d b]
+ c[ f b, c]
+
+ a[ f a f] a[ a' a, a']
+ a[ d, e g] a[ f f g]
+ c,[ b f' e]
+ b[ e g, e']
+ c'[ c, c c]
+ c[ c c c']
+ f,,[ b a g]
+ f[g g e]
+ a[ d, b' g]
+}
+rossThreeBeams = \relative c'' {
+ \time 6/8
+ e[ a, c] f[ d g]
+ f,[ b g] a[ b f]
+ d'[ c b a b e]
+ c[ b a c b a]
+ d,[ g a g f e ]
+ a[ g f a g f]
+ d'[ g, a b c d]
+ f[ e d c b f']
+}