1 files changed, 289 insertions, 0 deletions
diff --git a/blend.nim b/blend.nim
new file mode 100644
index 0000000..df87253
--- /dev/null
+++ b/blend.nim
@@ -0,0 +1,289 @@
+import yue, std/[sugar]
+
+const GAIN_NORMAL = 0.22
+
+var osc: OscFn = (f, t: float) => 0.0
+
+proc p*(len, octave, step, vol: float = 1): Note =
+  ## Note helper constructor
+  (len, freq(octave, step), vol, osc)
+
+osc = (f, t: float) => osc_piano(f, t) * GAIN_NORMAL
+
+let intro = [
+    p(1, 3, 3),
+    p(1, 3, 7),
+    p(1, 3, 10),
+    p(6, 4, 2),
+
+    p(1, 3, 1),
+    p(1, 3, 5),
+    p(1, 3, 8),
+    p(3, 4, 0),
+
+    p(1, 2, 11),
+    p(1, 3, 3),
+    p(1, 3, 6),
+    p(3, 3, 10),
+
+    p(1, 2, 8),
+    p(1, 3, 0),
+    p(1, 3, 3),
+    p(8, 3, 7),
+]
+
+let outro = [
+    p(1, 3, 3),
+    p(1, 3, 7),
+    p(1, 3, 10),
+    p(1, 4, 2),
+    p(1, 4, 3),
+    p(1, 4, 7),
+    p(2, 4, 8),
+
+    p(1, 3, 1),
+    p(1, 3, 5),
+    p(1, 3, 8),
+    p(1, 4, 0),
+    p(1, 4, 1),
+    p(1, 4, 5),
+    p(2, 4, 8),
+
+    p(1, 2, 11),
+    p(1, 3, 3),
+    p(1, 3, 6),
+    p(1, 3, 10),
+    p(1.5, 3, 11),
+    p(1.5, 4, 3),
+    p(3, 4, 8),
+
+    p(1.5, 2, 8),
+    p(1.5, 3, 0),
+    p(2, 3, 3),
+    p(16, 3, 7, 2),
+]
+
+let melody = [
+    p(1, 3, 3),
+    p(1, 3, 7),
+    p(1, 3, 10),
+    p(1, 4, 2),
+    p(1, 4, 3),
+    p(1, 4, 7),
+    p(2, 4, 8),
+
+    p(1, 3, 1),
+    p(1, 3, 5),
+    p(1, 3, 8),
+    p(1, 4, 0),
+    p(1, 4, 1),
+    p(1, 4, 5),
+    p(2, 4, 8),
+
+    p(1, 3, 3),
+    p(1, 3, 7),
+    p(1, 3, 10),
+    p(1, 4, 2),
+    p(1, 4, 3),
+    p(1, 4, 10),
+    p(2, 4, 3),
+
+    p(1, 3, 1),
+    p(1, 3, 5),
+    p(1, 3, 8),
+    p(1, 4, 0),
+    p(1, 4, 10),
+    p(1, 4, 8),
+    p(2, 4, 10),
+
+
+    p(1, 3, 3),
+    p(1, 3, 7),
+    p(1, 3, 10),
+    p(1, 4, 2),
+    p(1, 4, 3),
+    p(1, 4, 7),
+    p(2, 4, 8),
+
+    p(1, 3, 1),
+    p(1, 3, 5),
+    p(1, 3, 8),
+    p(1, 4, 0),
+    p(1, 4, 1),
+    p(1, 4, 5),
+    p(2, 4, 1),
+
+    p(1, 3, 3),
+    p(1, 3, 7),
+    p(1, 3, 10),
+    p(1, 4, 2),
+    p(1, 4, 3),
+    p(1, 4, 10),
+    p(1, 4, 8),
+    p(1, 4, 7),
+
+    p(1, 3, 1),
+    p(1, 3, 5),
+    p(1, 3, 8),
+    p(1, 4, 0),
+    p(1, 4, 10),
+    p(1, 4, 8),
+    p(2, 4, 10),
+]
+
+osc = (f, t: float) => osc_weird_pluck(f, t) * GAIN_NORMAL
+
+let melody2 = [
+    p(1, 0, 0),
+    p(1, 5, 10),
+    p(1, 5, 8),
+    p(1, 5, 7),
+    p(1, 5, 8),
+    p(3, 5, 7, 2),
+
+    p(1, 5, 3),
+    p(1, 4, 10),
+    p(6, 5, 1, 2),
+
+    p(1/2, 5, 0, 2),
+    p(1/2, 5, 1, 2),
+    p(3, 5, 3, 2),
+    p(1/2, 5, 10, 2),
+    p(7/2, 5, 3, 2),
+
+    p(8, 0, 0),
+
+    p(1, 0, 0),
+    p(1, 5, 3),
+    p(1, 5, 10),
+    p(1, 5, 10),
+    p(4/3, 5, 10),
+    p(4/3, 5, 8),
+    p(4/3, 5, 7),
+
+    p(1, 0, 0),
+    p(1, 5, 1),
+    p(1, 5, 8),
+    p(1, 5, 8),
+    p(4/3, 5, 8),
+    p(4/3, 5, 8),
+    p(4/3, 5, 10),
+
+    p(8, 0, 0),
+
+    p(1, 0, 0),
+    p(5, 5, 3, 2),
+    p(2, 5, 10, 2),
+]
+
+let melody3 = [
+    p(1, 0, 0),
+    p(1, 5, 10),
+    p(1/2, 5, 8, 2/3),
+    p(1/2, 5, 7, 2/3),
+    p(1/4, 5, 8, 1/2),
+    p(1/4, 5, 7, 1/2),
+    p(1/4, 5, 8, 1/2),
+    p(1/4, 5, 7, 1/2),
+    p(1, 5, 8),
+    p(3, 5, 7, 2),
+
+    p(1, 5, 3),
+    p(1, 4, 10),
+    p(1, 5, 1),
+    p(5, 5, 7, 2),
+
+    p(1/2, 5, 7),
+    p(1/2, 5, 10),
+    p(1/4, 5, 7),
+    p(1/4, 5, 10),
+    p(1/4, 5, 7),
+    p(1/4, 5, 10),
+    p(1, 6, 3),
+    p(2, 5, 3, 2),
+    p(1/2, 6, 3),
+    p(5/2, 5, 3, 2),
+
+    p(1/2, 5, 10),
+    p(1/2, 5, 8),
+    p(1/2, 5, 7),
+    p(1/2, 5, 8),
+    p(1/2, 5, 7),
+    p(1/2, 5, 3),
+    p(1/2, 4, 10),
+    p(1/2, 5, 1),
+    p(1/2, 5, 0),
+    p(1/2, 4, 10),
+    p(1/2, 4, 8),
+    p(1/2, 4, 10),
+    p(1/2, 5, 3),
+    p(1/2, 5, 7),
+    p(1/2, 5, 3),
+    p(1/2, 5, 10),
+
+    p(4/3, 5, 7),
+    p(4/3, 6, 3),
+    p(4/3, 6, 3),
+    p(4/3, 6, 2),
+    p(4/3, 5, 10),
+    p(4/3, 5, 7),
+
+    p(3, 5, 5),
+    p(2, 5, 7),
+    p(2, 5, 8),
+    p(1, 6, 1),
+
+    p(1, 5, 3),
+    p(1, 5, 5),
+    p(2, 5, 7),
+    p(1, 5, 3),
+    p(1, 5, 8),
+    p(2, 5, 10),
+
+    p(3/2, 6, 0),
+    p(3/2, 6, 1),
+    p(5, 6, 3, 2),
+]
+
+# clip length to 1 second
+osc = (f, t: float) => (if t > 1: 0.0 else:
+  (osc_saw(f, t) * GAIN_NORMAL * 0.06) + (osc_pulse(f, t) * GAIN_NORMAL * 0.3))
+
+let bass = [
+    p(1, 1, 3),
+    p(1, 1, 10),
+    p(1, 1, 1),
+    p(1, 1, 8),
+    p(1, 1, 3),
+    p(1, 2, 3),
+    p(1, 1, 1),
+    p(1, 1, 10),
+]
+
+from std/algorithm import sort
+
+# Process all lists of notes
+var music: seq[ProcessedNote] = @[]
+music.process(intro, 0, 4)
+music.process(melody, 8, 4)
+music.process(melody, 24, 4)
+music.process(bass, 24)
+music.process(bass, 32)
+music.process(melody, 40, 4)
+music.process(melody2, 40, 4)
+music.process(bass, 40)
+music.process(bass, 48)
+music.process(melody, 56, 4)
+music.process(melody3, 56, 4)
+music.process(bass, 56)
+music.process(bass, 64)
+music.process(outro, 72, 4)
+music.sortByStart()
+
+# Number of times to sample each second
+const bitrate = 44100
+
+# Print out music encoded in s32 to standard output
+for i in (0 * bitrate ..< 84 * bitrate):
+  let bytes = cast[array[4, uint8]](music.at(i / bitrate))
+  doAssert 4 == stdout.writeBytes(bytes, 0, 4)