diff --git a/strudel/slow wave.md b/strudel/slow wave.md
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+```javascript
+setcps(30/60/2)
+
+samples('github:bubobubobubobubo/dough-waveforms')
+$:sound("[sbd - sbd -]")
+  .off(.35,x=>x.delay(1/4).dt(1/4).room(1/8)).dec(0.3).gain(0.2).lpf(200)
+
+$:sound("[- hh - -]")
+  .off(.25,x=>x.delay(1/2).dt(1/4).dfb(1/2)).dec(0.5).gain(0.3)
+
+$:stack(
+note("a2 f2 c2 g2").sound("wt_11").slow(1)
+  .n(run("8").add("<8 16 4>")).dec(2/3)
+  .lpf(perlin.range(100,300).slow(7)).lpq("<0 10>").lpenv(-1)
+  .sometimes(x=>x.mask("0|1|0|1")),
+
+note("e3 a3 e3 b3").sound("wt_12").slow(2)
+  .n(run(8).add("<7 14 28>")).dec(1/2)
+  .lpf(tri.range(100,1200).slow(16)).lpenv(1).lpa(.1)
+  .sometimes(x=>x.mask("1|1|0|0")),
+
+note("e3 c3 g3 d3").sound("wt_08").slow(2)
+  .n(run(8).add("<81 9 3>")).dec(1/2)
+  .lpf(berlin.range(300,900).slow(8))
+  .sometimes(x=>x.mask("0|0|1|1")),
+
+note("a3 c4 e4 e4 gs4 b4 d4 a3 c4 e4").sound("wt_12").fast(2)
+   .n(run(8).add("<4 16 24>")).dec(0.5)
+  .lpf(sine.range(200,600).slow(6))
+  .sometimes(x=>x.mask("0")).someCycles(x=>x.rev().late(1/8)),
+).delay(1/2).dt(1/8).dfb(2/3).room(2)
+
+all(x=>x.postgain(1))
+
+
+
+    
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+```
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