diff --git a/base.sds b/base.sds
index 96533aa..18de03a 100644
--- a/base.sds
+++ b/base.sds
@@ -1,4 +1,4 @@
-%Srdr-1.1
+%Srdr-1.0
 
 '
 ' Surrounder base scene file
@@ -13,26 +13,27 @@ Chs: CHANNELS_5_1; 16; 44100
 Lay: LAYOUT_5_1
 
 ' Splitting into stems
-Sep: STEMS_SIMPLE
+Sep: STEMS_ALL
 
 ' Original version of the song in the front channels
+Map: STEMS_PIANO_L; 0; 1
+Map: STEMS_PIANO_R; 1; 1
+Map: STEMS_GUITAR_L; 0; 1
+Map: STEMS_GUITAR_R; 1; 1
+Map: STEMS_BASS_L; 5; 1.5
+Map: STEMS_BASS_R; 4; 1.5
+Map: STEMS_DRUMS_L; 4; 0.6
+Map: STEMS_DRUMS_R; 5; 0.6
 Map: STEMS_OTHER_L; 0; 1
 Map: STEMS_OTHER_R; 1; 1
 
 ' Vocals on the center channel
-Map: STEMS_VOCALS_L; 2; 0.5
-Map: STEMS_VOCALS_R; 2; 0.5
+Map: STEMS_VOCALS_L; 2; 1
+Map: STEMS_VOCALS_R; 2; 1
 
 ' Low frequency elements
 Map: STEMS_LFE_L; 3; 1
 Map: STEMS_LFE_R; 3; 1
 
-' Quieter version of the song in the back channels
-Map: STEMS_OTHER_L; 4; 0.75
-Map: STEMS_OTHER_R; 5; 0.75
-
-' New in 0.2.0: Adding distance between the back channels
-Dis: 4; 5
-
 ' FLAC output
 Out: OUTPUT_FLAC
diff --git a/base_simple.sds b/base_simple.sds
new file mode 100644
index 0000000..96533aa
--- /dev/null
+++ b/base_simple.sds
@@ -0,0 +1,38 @@
+%Srdr-1.1
+
+'
+' Surrounder base scene file
+'
+' This is the primary scene file tested during development
+' of Surrounder. It produces 5.1 surround output from stereo
+' input.
+'
+
+' Base configuration
+Chs: CHANNELS_5_1; 16; 44100
+Lay: LAYOUT_5_1
+
+' Splitting into stems
+Sep: STEMS_SIMPLE
+
+' Original version of the song in the front channels
+Map: STEMS_OTHER_L; 0; 1
+Map: STEMS_OTHER_R; 1; 1
+
+' Vocals on the center channel
+Map: STEMS_VOCALS_L; 2; 0.5
+Map: STEMS_VOCALS_R; 2; 0.5
+
+' Low frequency elements
+Map: STEMS_LFE_L; 3; 1
+Map: STEMS_LFE_R; 3; 1
+
+' Quieter version of the song in the back channels
+Map: STEMS_OTHER_L; 4; 0.75
+Map: STEMS_OTHER_R; 5; 0.75
+
+' New in 0.2.0: Adding distance between the back channels
+Dis: 4; 5
+
+' FLAC output
+Out: OUTPUT_FLAC
diff --git a/base_ai.sds b/legacy_1.sds
similarity index 100%
rename from base_ai.sds
rename to legacy_1.sds
diff --git a/legacy.sds b/legacy_2.sds
similarity index 100%
rename from legacy.sds
rename to legacy_2.sds