3 texidoc = "Concave beaming works for chords as well as monophonic
8 morgenliedBeam = \relative c'' \new Voice {
16 rachmaninovBeams = \relative c' \new Voice {
20 <c' e c'>8[ <g c g'> <c f> <ees, ees'>] ~
21 <ees ees'>8[ <c c'> <des des'> <d d'>]
28 nonHorizontalBeams = {
36 % cut & paste from beam-concave.ly
38 #(define (<> x y) (not (= x y)))
40 \override Staff.Beam.positions = #(check-slope-callbacks =)
42 mustNotBeHorizontal = {
43 \override Staff.Beam.positions = #(check-slope-callbacks <>)