Seems like nothing is included

.gitignore

@@ -1,3 +0,0 @@
-disk_errors/
-pdf/
-tmp/

hornpipes/the_walrus/drums.ly

@@ -0,0 +1,50 @@
+\version "2.19.0"
+
+\include "config.ily"
+\include "notes.bass.ily"
+\include "notes.tenor.ily"
+\include "notes.side.ily"
+
+\score {
+	\new StaffGroup <<
+		\new PipeBandDrumStaff = "side" {
+			\global
+			\sideglobal
+			\set PipeBandDrumStaff.instrumentName = \markup{\instrumentSide}
+			\set PipeBandDrumStaff.shortInstrumentName = \markup{\shortInstrumentSide}
+
+			<<
+				{ }%Format
+				{ }%Music
+			>>
+		}
+		\new PipeBandDrumStaff = "bass" {
+			\bassglobal
+			\set PipeBandDrumStaff.instrumentName = \markup{ \instrumentBass }
+			\set PipeBandDrumStaff.shortInstrumentName = \markup{ \shortInstrumentBass}
+
+		}
+		\new PipeBandDrumStaff = "tenor" {
+			\tenorglobal
+			\set PipeBandDrumStaff.instrumentName = \markup{ \instrumentTenor }
+			\set PipeBandDrumStaff.shortInstrumentName = \markup{ \shortInstrumentTenor }
+
+		}
+	>>
+	\header {
+		title = \title
+		meter = \meter
+		composer = \markup {
+			\column \right-align {
+				$(if (not (string=? "" composerSide))  #{ \markup {\line { \composerSide  ":" }} #} )
+				$(if (not (string=? "" composerTenor)) #{ \markup {\line { \composerTenor  ":" }} #} )
+				$(if (not (string=? "" composerBass))  #{ \markup {\line { \composerBass  ":" }} #} )
+			}
+			\column \right-align {
+				$(if (not (string=? "" composerSide))  #{ \markup {\line { \instrumentSide }}#} )
+				$(if (not (string=? "" composerTenor)) #{ \markup {\line { \instrumentTenor }}#} )
+				$(if (not (string=? "" composerBass))  #{ \markup {\line { \instrumentBass }}#} )
+			}
+		}
+	}
+}

hornpipes/the_walrus/notes.tenor.ily

@@ -0,0 +1,6 @@
+% <<TimeSig>> <<Title>>
+% Tenor
+\version "2.18.2"
+composerTenor = ""
+tenorA = \drummode {
+}

hornpipes/the_walrus/tenor.ly

@@ -0,0 +1,20 @@
+\version "2.18.2"
+
+\include "config.ily"
+\include "notes.tenor.ily"
+
+\score {
+    \new PipeBandDrumStaff {
+		\global
+        <<
+			{}
+			{}
+		>>
+	}
+	\header {
+		title = \title
+		meter = \meter
+		instrument = \instrumentTenor
+		composer = \composerTenor
+	}
+}