lilypond-book: Add documentation for MusicXML support

[lilypond.git] / scripts / midi2ly.py

diff --git a/scripts/midi2ly.py b/scripts/midi2ly.py
index 60a2febde0b583fb7e3cf0a776594660167f0663..1a21c665155d5c163b784f149716631e83901197 100644 (file)
--- a/scripts/midi2ly.py
+++ b/scripts/midi2ly.py
@@ -827,7 +827,11 @@ def dump_track (track, n):
             if not n and not vv and global_options.key:
                 s += global_options.key.dump ()
             if average_pitch[vv+1] and voices > 1:
-                s += '  \\voice' + get_voice_layout (average_pitch[1:])[vv] + '\n'
+                vl = get_voice_layout (average_pitch[1:])[vv]
+                if vl:
+                    s += '  \\voice' + vl + '\n'
+                else:
+                    warning (_ ('found more than 5 voices on a staff, expect bad output'))
             s += '  ' + dump_voice (voice, skip)
             s += '}\n\n'
             v += 1
@@ -971,7 +975,7 @@ def convert_midi (in_file, out_file):
 
     s = tag
     s += r'''
-\version "2.13.53"
+\version "2.14.0"
 '''
 
     s += r'''
@@ -998,6 +1002,7 @@ def convert_midi (in_file, out_file):
 
     s += '\n\\score {\n  <<\n'
 
+    control_track = False
     i = 0
     for i, staff in enumerate (staves):
         track_name = get_track_name (i)
@@ -1005,11 +1010,12 @@ def convert_midi (in_file, out_file):
         staff_name = track_name
         context = None
         if not i and not item and len (staves) > 1:
-            # control track
-            staff_name = get_track_name (1)
-            context = 'Staff'
+            control_track = track_name
+            continue
         elif (item and item.__class__ == Note):
             context = 'Staff'
+            if control_track:
+                s += '    \\context %(context)s=%(staff_name)s \\%(control_track)s\n' % locals ()
         elif item and item.__class__ == Text:
             context = 'Lyrics'
         if context: