4 texidoc = "Mensural ligatures show different shapes, depending on the
5 rhythmical pattern and direction of the melody line."
11 \set Staff.printKeyCancellation = ##f
12 \cadenzaOn % turn off bar lines
13 #(set-accidental-style 'forget)
18 b\breve^\markup { \column { { \bold "ligaturae binaria" } "BL" } }
23 g\breve^\markup { "BL" }
28 b\longa^\markup { "LL" }
33 g\longa^\markup { "LL" }
38 b\breve^\markup { "BB" }
43 g\breve^\markup { "BB" }
48 b\longa^\markup { "LB" }
53 g\longa^\markup { "LB" }
69 % ligaturae ternariae, quaternariae, etc. (sicut in Apel[1])
73 \column { { \bold "ligaturae ternariae, quaternariae, etc." } "BBL" } }
79 a\breve^\markup { "BBBB" }
86 b1^\markup { "SSBBBLB" }
96 a\longa^\markup { "LBMxBL" }
104 d'\breve^\markup { "BBBBLL" }
113 c'1^\markup { "SSBLLBB" }
124 % examples from "dtv-Atlas zur Musik" [2]
127 d'\breve^\markup { \column { { \bold "dtv-Atlas" } "BBL" } }
133 a\breve^\markup { "BBBL" }
140 b\longa.^\markup { "L.B.BBLBBB" }
151 c'1^\markup { "SSBB" }
158 b\longa^\markup { "LBL" }
164 a1^\markup { "SSBL" }
172 % some ligatures from Ockeghem: Missa De plus en plus
176 \column { { \bold "Ockeghem: Missa De plus en plus" } "MxMx" } }
181 d\longa^\markup { "LBBBB" }
189 c'\maxima^\markup { "MxL" }
194 e'\breve^\markup { "BBB" }
200 b\longa^\markup { "LBBBBB" }
209 g\breve^\markup { "BBBBL" }
217 e'1^\markup { "SSB" }
223 g\longa^\markup { "LLLL" }
231 % some from the Requiem
234 a1^\markup { \column { { \bold "Ockeghem: Requiem" } "SSBBBBBBBL" } }
247 c'\breve^\markup { "BBBBL" }
259 c\breve^\markup { \column { { \bold "crazy ligatures" } "BBBBB" } }
267 bes\breve^\markup { "BB" }
269 \] % TODO: accidentals must be collected and printed before ligature
272 a\breve.^\markup { "B.B.B.B.B.B.B.B.B." }
286 \] % TODO: dots within ligatures must be placed above heads
290 % invalid ligatures (those commented out are rejected with explanation)
293 % a1^\markup { \column { { \bold "invalid ligatures" } "SS" } }
298 a\breve^\markup { "BBB" }
304 % f\longa^\markup { "LLB" }
310 % f\breve^\markup { "BSLB" }
323 \remove Ligature_bracket_engraver
324 \consists Mensural_ligature_engraver
331 % [1] Willi Apel: The Notation of Polyphonic Music. 900-1600.
332 % [2] Ulrich Michels: dtv-Altlas zur Musik, 1977.