Added bass for Alexander MacKenzie

airs/alexander_mackenzie/bass.ly

@@ -0,0 +1,33 @@
+\version "2.18.2"
+
+\include "config.ily"
+\include "notes.bass.ily"
+
+\score {
+    \new PipeBandDrumStaff {
+        \global
+	\bassglobal
+	<<
+		{
+			\repeat volta 2 { \line \break } \break
+			\repeat volta 2 { \halfline \break }
+				\alternative{ {\halfline \break}{\halfline \break} }
+			\bar "|."
+		}
+		{
+			\bassAA 
+			\bassAB 
+
+			\bassBA 
+			\bassBB  
+			\bassAB 
+		}
+	>>
+	}
+	\header {
+		title = \title
+		meter = \meter
+		instrument = \instrumentBass
+		composer = \composerBass
+	}
+}