create/update 'Slow sine.md' file

strudel/Slow sine.md

@@ -119,4 +119,51 @@ $:base.fast(4)
 
 all(x=>x.room(1/4).dist(0.05).postgain(1/4))
 
+```
+
+```javascripy
+setcps(120/60/4)
+
+const melodyPatterns = [
+  // クロマチック・アプローチ
+  "[g4 g#4 a4] [e4 f4 g4] [f4 e4 f4] [f4 e4 b4]",
+  // 7th、9thを強調
+  "[b4 d5] [g4 c5] [a4 c5] [f4 a4 d5]",
+  // シンコペーション + ブルーノート
+  "[~ g4 bb4] [e4 ~ g4] [f4 ab4] [~ f4 b4]",
+  // 3連符でスウィング感
+  "[g4 b4 d5]/3 [e4 g4]/2 [f4 a4 c5]/3 [b4]/1",
+  // ジャズ的アルペジオ
+  "[g4 b4 d5 f#5] [e4 g4 c5] [f4 a4] [b4 d5 f4]",
+  // 半音階的下降
+  "[b4 bb4 a4] [g4 f#4 g4] [f4 e4 eb4] [f4 g4 b4]",
+  // 複雑なリズム + 9th
+  "[g4*2 b4] [e4 ~ g4 c5] [f4/2 a4/2 d5] [f4 b4]",
+  // モダンジャズ風
+  "~ [e4 bb4 d5] [f4 ~ a4] [b4 eb5 g4]"
+]
+
+const base = stack(
+  stack(
+  note("c1 a1 d1 g1").sound("sine"),
+  note("c2 a2 d2 g2").sound("sine").gain(0.5),
+  note("g3 e3 f3 b3").sound("sine").gain(0.25),
+  note("b3 g3 a3 f3").sound("sine").gain(0.15)
+  ),
+  note(chooseCycles("0","1","2","3","4","5","6","7").inhabit(melodyPatterns))
+  .fast(1.5).sound("sine")
+  // ジャズ的なタイミング調整
+  .sometimesBy(0.3, x=>x.early(1/32)) // 微妙な前ノリ
+  .sometimesBy(0.2, x=>x.late(1/32))  // 微妙な後ノリ
+).dist(0.05)
+
+$:base
+  .lpf(tri.range(600,900)) // 少し暗めの音色でジャズ感
+  .sometimesBy(0.15,x=>x.mask("0"))
+$:base.late(1/16)
+  .lpf(tri.range(200,300)) 
+  .sometimesBy(0.125,x=>x.rev())
+  .someCyclesBy(0.20,x=>x.mask("0"))
+
+all(x=>x.room(1/4).postgain(1/4))
 ```