diff --git a/Makefile b/Makefile
index dbeb322..dc39c65 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,8 @@ OPT = -O2
 
 MAKEFILE_PATH := $(patsubst %/,%,$(dir $(abspath $(firstword $(MAKEFILE_LIST)))))
 LIB ?= $(MAKEFILE_PATH)/dreamcast
-CFLAGS += -I$(MAKEFILE_PATH)
+CFLAGS += -I$(MAKEFILE_PATH)/
+CFLAGS += -I$(MAKEFILE_PATH)/src
 CFLAGS += -I$(MAKEFILE_PATH)/dreamcast
 CFLAGS += -Wno-error=strict-aliasing -fno-strict-aliasing
 CARCH = -m4-single -ml
diff --git a/src/graphics.cpp b/src/graphics.cpp
index 2f9eabd..d2c0d85 100644
--- a/src/graphics.cpp
+++ b/src/graphics.cpp
@@ -25,25 +25,9 @@
 #include "font/tandy1k.data.h"
 
 #include "framebuffer.hpp"
-#include "src/scene/tracker/scene.hpp"
-
-constexpr uint32_t ta_alloc = 0
-                            | ta_alloc_ctrl::pt_opb::_32x4byte
-                            | ta_alloc_ctrl::tm_opb::no_list
-                            | ta_alloc_ctrl::t_opb::_8x4byte
-                            | ta_alloc_ctrl::om_opb::no_list
-                            | ta_alloc_ctrl::o_opb::_32x4byte;
-
-constexpr int ta_cont_count = 1;
-constexpr struct opb_size opb_size[ta_cont_count] = {
-  {
-    .opaque = 32 * 4,
-    .opaque_modifier = 0,
-    .translucent = 8 * 4,
-    .translucent_modifier = 0,
-    .punch_through = 32 * 4
-  }
-};
+#include "scene/scene.hpp"
+#include "scene/tracker/scene.hpp"
+#include "graphics.hpp"
 
 static volatile int ta_in_use = 0;
 static volatile int core_in_use = 0;
@@ -51,6 +35,12 @@ static volatile int next_frame = 0;
 static volatile int framebuffer_ix = 0;
 static volatile int next_frame_ix = 0;
 
+static const scene::scene scenes[] = {
+  scene::tracker::scene,
+};
+
+static const scene::scene * current_scene = &scenes[0];
+
 void graphics_interrupt(uint32_t istnrm)
 {
   if (istnrm & istnrm::v_blank_in) {
@@ -152,22 +142,25 @@ void graphics_init()
   background_parameter2(texture_memory_alloc.background[0].start,
                         0xff800080);
 
+  transfer_textures();
+  transfer_palettes();
+}
+
+void graphics_scene_init()
+{
   region_array_multipass(framebuffer.tile_width(),
                          framebuffer.tile_height(),
-                         opb_size,
+                         &current_scene->opb_size,
                          ta_cont_count,
                          texture_memory_alloc.region_array.start,
                          texture_memory_alloc.object_list.start);
-
-  transfer_textures();
-  transfer_palettes();
 }
 
 void graphics_event(ta_parameter_writer& writer)
 {
   writer.offset = 0;
 
-  tracker::scene::transfer(writer);
+  scene::tracker::transfer(writer);
 
   while (ta_in_use);
   while (core_in_use);
@@ -176,8 +169,8 @@ void graphics_event(ta_parameter_writer& writer)
                              texture_memory_alloc.isp_tsp_parameters.end,
                              texture_memory_alloc.object_list.start,
                              texture_memory_alloc.object_list.end,
-                             opb_size[0].total(),
-                             ta_alloc,
+                             current_scene->opb_size.total(),
+                             current_scene->ta_alloc,
                              framebuffer.tile_width(),
                              framebuffer.tile_height());
   ta_polygon_converter_writeback(writer.buf, writer.offset);
diff --git a/src/graphics.hpp b/src/graphics.hpp
index 078a94a..c70b6e5 100644
--- a/src/graphics.hpp
+++ b/src/graphics.hpp
@@ -4,6 +4,9 @@
 
 #include "holly/ta_parameter.hpp"
 
+constexpr int ta_cont_count = 1;
+
 void graphics_interrupt(uint32_t istnrm);
 void graphics_init();
 void graphics_event(ta_parameter_writer& writer);
+void graphics_scene_init();
diff --git a/src/main.cpp b/src/main.cpp
index 6a3aea4..22e35f8 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -239,6 +239,7 @@ void main()
   const float aica_clock_multiplier = 44.1;
   load_xm(aica_clock_multiplier);
   graphics_init();
+  graphics_scene_init();
 
   test_pattern();
 
diff --git a/src/scene/scene.hpp b/src/scene/scene.hpp
new file mode 100644
index 0000000..5e60a77
--- /dev/null
+++ b/src/scene/scene.hpp
@@ -0,0 +1,13 @@
+#pragma once
+
+#include "holly/region_array.hpp"
+
+namespace scene {
+
+struct scene {
+  const uint32_t ta_alloc;
+  const struct opb_size opb_size;
+  void (* const transfer)(ta_parameter_writer& writer);
+};
+
+}
diff --git a/src/scene/tracker/channel_status.cpp b/src/scene/tracker/channel_status.cpp
index 41b92d8..a3b69b7 100644
--- a/src/scene/tracker/channel_status.cpp
+++ b/src/scene/tracker/channel_status.cpp
@@ -22,8 +22,7 @@ static inline int round_up(int n, int m)
   return n + m - rem;
 }
 
-namespace tracker {
-  namespace channel_status {
+namespace scene::tracker::channel_status {
 
 void transfer(ta_parameter_writer& writer, int x, int y)
 {
@@ -99,5 +98,4 @@ void transfer(ta_parameter_writer& writer, int x, int y)
   //borders(writer, x, y);
 }
 
-  }
 }
diff --git a/src/scene/tracker/channel_status.hpp b/src/scene/tracker/channel_status.hpp
index 94cc607..cd6d444 100644
--- a/src/scene/tracker/channel_status.hpp
+++ b/src/scene/tracker/channel_status.hpp
@@ -2,8 +2,6 @@
 
 #include "holly/ta_parameter.hpp"
 
-namespace tracker {
-  namespace channel_status {
-    void transfer(ta_parameter_writer& writer, int x, int y);
-  }
+namespace scene::tracker::channel_status {
+  void transfer(ta_parameter_writer& writer, int x, int y);
 }
diff --git a/src/scene/tracker/notes.cpp b/src/scene/tracker/notes.cpp
index 8b67d6a..ca446cb 100644
--- a/src/scene/tracker/notes.cpp
+++ b/src/scene/tracker/notes.cpp
@@ -172,8 +172,7 @@ static void transfer_line(ta_parameter_writer& writer, int line_index, int x, in
   }
 }
 
-namespace tracker {
-  namespace notes {
+namespace scene::tracker::notes {
 
 void borders(ta_parameter_writer& writer, int x, int y)
 {
@@ -249,5 +248,4 @@ void transfer_middle_line(ta_parameter_writer& writer, float x, float y)
               0x202020);
 }
 
-  }
 }
diff --git a/src/scene/tracker/notes.hpp b/src/scene/tracker/notes.hpp
index bbf736d..e9a49de 100644
--- a/src/scene/tracker/notes.hpp
+++ b/src/scene/tracker/notes.hpp
@@ -2,12 +2,10 @@
 
 #include "holly/ta_parameter.hpp"
 
-namespace tracker {
-  namespace notes {
+namespace scene::tracker::notes {
 
-    void borders(ta_parameter_writer& writer, int x, int y);
-    void transfer_lines(ta_parameter_writer& writer, int x, int y);
-    void transfer_middle_line(ta_parameter_writer& writer, float x, float y);
+  void borders(ta_parameter_writer& writer, int x, int y);
+  void transfer_lines(ta_parameter_writer& writer, int x, int y);
+  void transfer_middle_line(ta_parameter_writer& writer, float x, float y);
 
-  }
 }
diff --git a/src/scene/tracker/scene.cpp b/src/scene/tracker/scene.cpp
index bea98bd..81f9686 100644
--- a/src/scene/tracker/scene.cpp
+++ b/src/scene/tracker/scene.cpp
@@ -1,50 +1,50 @@
-#include "../../ta_parameter.hpp"
+#include "holly/ta_bits.hpp"
+
+#include "ta_parameter.hpp"
 
 #include "notes.hpp"
 #include "channel_status.hpp"
+#include "scene/scene.hpp"
 
-namespace tracker {
-  namespace scene {
+namespace scene::tracker {
 
-void transfer(ta_parameter_writer& writer)
-{
-  const int x = 3;
-  const int y = 100;
+  void transfer(ta_parameter_writer& writer)
+  {
+    const int x = 3;
+    const int y = 100;
 
-  { // punch-through
-    global_polygon_textured(writer,
-                            para_control::list_type::punch_through);
+    { // punch-through
+      global_polygon_textured(writer,
+                              para_control::list_type::punch_through);
 
-    tracker::notes::transfer_lines(writer, x, y);
+      tracker::notes::transfer_lines(writer, x, y);
 
-    writer.append<ta_global_parameter::end_of_list>() =
-      ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
-  }
+      writer.append<ta_global_parameter::end_of_list>() =
+        ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
+    }
 
-  { // translucent
-    global_polygon_untextured(writer,
-                              para_control::list_type::translucent,
-                              tsp_instruction_word::dst_alpha_instr::one);
+    { // translucent
+      global_polygon_untextured(writer,
+                                para_control::list_type::translucent,
+                                tsp_instruction_word::dst_alpha_instr::one);
 
-    tracker::notes::transfer_middle_line(writer, x, y);
+      tracker::notes::transfer_middle_line(writer, x, y);
 
-    writer.append<ta_global_parameter::end_of_list>() =
-      ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
-  }
+      writer.append<ta_global_parameter::end_of_list>() =
+        ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
+    }
 
-  { // opaque
-    global_polygon_untextured(writer,
-                              para_control::list_type::opaque,
-                              tsp_instruction_word::dst_alpha_instr::zero);
+    { // opaque
+      global_polygon_untextured(writer,
+                                para_control::list_type::opaque,
+                                tsp_instruction_word::dst_alpha_instr::zero);
 
-    tracker::notes::borders(writer, x, y);
+      tracker::notes::borders(writer, x, y);
 
-    tracker::channel_status::transfer(writer, 0, 0);
-
-    writer.append<ta_global_parameter::end_of_list>() =
-      ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
-  }
-}
+      tracker::channel_status::transfer(writer, 0, 0);
 
+      writer.append<ta_global_parameter::end_of_list>() =
+        ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
+    }
   }
 }
diff --git a/src/scene/tracker/scene.hpp b/src/scene/tracker/scene.hpp
index 6d2d32a..49d835b 100644
--- a/src/scene/tracker/scene.hpp
+++ b/src/scene/tracker/scene.hpp
@@ -1,7 +1,22 @@
 #pragma once
 
-namespace tracker {
-  namespace scene {
-    void transfer(ta_parameter_writer& writer);
-  }
+namespace scene::tracker {
+
+  void transfer(ta_parameter_writer& writer);
+
+  struct scene::scene scene = {
+    .ta_alloc = ta_alloc_ctrl::pt_opb::_32x4byte
+              | ta_alloc_ctrl::tm_opb::no_list
+              | ta_alloc_ctrl::t_opb::_8x4byte
+              | ta_alloc_ctrl::om_opb::no_list
+              | ta_alloc_ctrl::o_opb::_32x4byte,
+    .opb_size = {
+      .opaque = 32 * 4,
+      .opaque_modifier = 0,
+      .translucent = 8 * 4,
+      .translucent_modifier = 0,
+      .punch_through = 32 * 4
+    },
+    .transfer = transfer,
+  };
 }