[update] Renamed Song to Music.

.bin/music/README.md

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+SONGS
+====
+
+ - [Cranky-VLSI_short](https://soundcloud.com/felinegroove/vlsi-short-edit)

.bin/music/list.json

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+[
+  {
+    "name": "test-60bpm",
+    "bpm": 60,
+    "music":  "test-60bpm.ogg",
+    "script": "test-60bpm.sj",
+
+    "preview": {
+      "play-offset": 0,
+      "bg-inner-color": [0.8, 0.8, 0.8, 1],
+      "bg-outer-color": [0.1, 0.1, 0.1, 1]
+    }
+  },
+  {
+    "name": "Cranky - V.L.S.I.",
+    "bpm": 60,
+    "music":  "Cranky-VLSI_short.ogg",
+    "script": "Cranky-VLSI_short.sj",
+
+    "preview": {
+      "play-offset": 38000,
+      "bg-inner-color": [0.6, 0.6, 0.7, 1],
+      "bg-outer-color": [0.1, 0.1, 0.1, 1]
+    }
+  }
+]

.bin/music/test-60bpm.sj

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+actor [0..100] {
+  color_a := 1;
+
+  clip_left := 0.1;
+}
+background [0..100] {
+  inner_r = 0.8;
+  inner_g = 0.8;
+  inner_b = 0.8;
+  inner_a = 1;
+
+  outer_r = 0;
+  outer_g = 0;
+  outer_b = 0;
+  outer_a = 1;
+}
+posteffect [0..100] {
+  clip_left  := 0.1;
+  clip_right := 0.1;
+}
+
+$repeat i 10 {
+  $repeat j 20 {
+    circle [$i..$i+2] {
+      color_r := 0.8;
+      color_g := 0.1;
+      color_b := 0.1;
+      color_a := 1;
+
+      damage       := 0.1;
+      nearness_coe := 0.01;
+
+      __theta       := 2*3.14/20 * $j;
+      translation_x := cos(__theta) * 0.5;
+      translation_y := sin(__theta) * 0.5;
+      scale_x       := 0.025;
+      scale_y       := 0.025;
+
+      __atan    := atan2(actor_y - translation_y, actor_x - translation_x);
+      __speed_x := cos(__atan) * 0.015;
+      __speed_y := sin(__atan) * 0.015;
+
+      translation_x += __speed_x;
+      translation_y += __speed_y;
+    }
+  }
+}