Data commit

Task/Musical-scale/Wren/musical-scale-1.wren

@@ -0,0 +1,15 @@
+import "/sound" for Wav
+
+var sampleRate = 44100
+var duration = 8
+var data = List.filled(sampleRate * duration, 0)
+var freqs = [261.6, 293.6, 329.6, 349.2, 392.0, 440.0, 493.9, 523.3]
+for (j in 0...duration) {
+    var freq = freqs[j]
+    var omega = 2 * Num.pi * freq
+    for (i in 0...sampleRate) {
+        var y = (32 * (omega * i / sampleRate).sin).round & 255
+        data[i + j * sampleRate] = y
+    }
+}
+Wav.create("musical_scale.wav", data, sampleRate)

Task/Musical-scale/Wren/musical-scale-2.wren

@@ -0,0 +1,16 @@
+import "audio" for AudioEngine
+
+class Main {
+    construct new() {}
+
+    init() {
+        AudioEngine.load("doremi", "musical_scale.wav")
+        AudioEngine.play("doremi")
+    }
+
+    update() {}
+
+    draw(alpha) {}
+}
+
+var Game = Main.new()