change midi settings

standalone_output.ly

@@ -10,14 +10,6 @@ verselayout = \layout {
     \override ChordName.font-size = \songTextChordFontSize
   }
 }
-
-LAYOUT = \layout {
-  \LAYOUT
-  #(let
-    ((custom-size (ly:output-def-lookup LAYOUT 'size #f)))
-    (if custom-size (layout-set-staff-size custom-size)))
-}
-
 TEXT = \markuplist {
   \override #`(transposition . ,TRANSPOSITION)
   \override #`(verselayout . ,verselayout)
@@ -47,6 +39,14 @@ TEXT = \markuplist {
           % Tempo des midi files
           tempoWholesPerMinute = #(/ midiQuarterNoteSpeed 4)
         }
+        \context {
+          \Staff
+          \remove "Staff_performer"
+        }
+        \context {
+          \Voice
+          \consists "Staff_performer"
+        }
       }
     }#})
 ))

verses_with_chords.ly

@@ -263,9 +263,6 @@
           >>
           \layout {
             \verselayout
-            #(let
-              ((custom-size (ly:output-def-lookup verselayout 'size #f)))
-              (if custom-size (layout-set-staff-size custom-size)))
             ragged-right = ##t
             \context {
               \Lyrics