GalileiV/saltarello: update to 2.18 (plus scheme re-indentation)
FaureG/Sicilienne (op78): update to 2.18 and add tuning indication
Update to LilyPond 2.18.0
- moved upper and lower voices to variables for readability
- used fingering engraver instead of markup
Fix name typo
(Valentin Villenave) update to LilyPond 2.18 syntax
(Valentin Villenave) Update to LilyPond 2.18
(Valentin Villenave) Updated to LilyPond 2.18
WeckmannM/MWPPT: run convert-ly to update to 2.18 (issue 250)
WeckmannM/MWPPT: set voices explicitely and avoid collisions

There are few rests collision yet and a warning related to
manually beamed notes when changing staff.
Update GriegE/O46/03-anitrasdance to 2.18
(Valentin Villenave) Update to LilyPond 2.18 syntax
Merge all part files into single source file
Reuse common music using tags.

Also, use cautionary accidentals according to same source.
Update to LilyPond 2.18 syntax
Remove part files that have been merged into a single source. Since
result is a single file, move the file and remove the -lys folder.
Code is all in a single file so move ballade.ly to the parent and remove
the -lys folder
Update #297 PachelbelJ/fugue-3-7 to 2.18.
Update FaureG/O7/apres to 2.18.
ScriabinA/O59: convert-ly to 2.18
ScriabinA/O59: edit maintainer name and system spacing
JoplinS/search: convert-ly to 2.18