strudel/20260216.md を追加

strudel/20260216.md

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+```javascript
+setcps(126/60/4)
+
+$: note("c2(5,16),c1(9,16)")
+    .s("supersaw")
+    .lpf(sine.range(200, 400).slow(5)) 
+    .lpq(10)
+    .ftype(0) 
+    .gain(.5) 
+
+$: s("bd*4").bank("tr909").gain(1.2)
+$: s("- cp").bank("tr808").gain(.7).room(.5)
+$: s("hh*16").bank("tr909")
+    .gain(sine.range(.4, .8).fast(4)) 
+    .pan(sine.range(.4, .6).slow(2))
+
+$: s("cb(3,8), rim(5,8)").bank("tr808").gain(.4).delay(.3).room(.3)
+
+$: chord("<Cm7 F7 BbM7 G7alt>").voicing()
+    .s("gm_pad_warm").att(.2).dec(.5).sus(.3).rel(.1)
+    .lpf(1200)
+    .room(.3)
+    .gain(.3)
+    .slow(4)
+```