diff --git a/piston.tidal b/piston.tidal
index 4ac4100..f5ad0ce 100644
--- a/piston.tidal
+++ b/piston.tidal
@@ -189,6 +189,68 @@ d3 $ every 2 (0.5 <~) $ slow 4 $ rev . chop 16 $ bassParams $ sound "[dubb dubb:
 piston 2.a
 -}
 
+d4 $ (0.25 <~) $ slow 16 . chop 32 $ sound (samples "bzl" (density 1.5 "0 1"))
+   |+| speed ((+1.3) <$> density 1.7 sinewave1)
+   |+| gain "0.8"
+
+d2 $ sound "[wt(5,8)]/4"
+
+d1 $ (0.5 <~) $ stack [
+   whenmod 9 2 (0.25 <~) $ sound "~ k",
+   (0.75 ~>) $ sound "[~ sn]/2"
+]
+
+d9 $ (0.25 ~>) $ sound "[~ ~ ~ [~ ~ [~ ~ ~ wtsn] [~ wtsn ~ wtsn]]]/16"
+
+mapM_ ($ silence) [d3,d4,d8]
+
+d7 $ whenmod 3 2 (slow 2) $ slow 8 $ every 2 rev $ striate 64 $ sound "ice"
+   |+| cutoff "0.02"
+   |+| resonance "0.001"
+   |+| speed "0.7"
+
+d3 $ bassParams $ (0.5 ~>) $ chop 8 $ sound "[dubb dubb:1]/2"
+   |+| cut "1"
+   |+| cutoff "0.01"
+   |+| resonance ((/3) <$> slow 4 saw1)
+
+mapM_ ($ silence) [d7,d9]
+
+d4 $ (0.25 <~) $ whenmod 5 4 (density 2) $ slow 16 . chop 32 $ sound (samples "bzl" (density 1.5 "0 1"))
+   |+| speed ((+1.3) <$> density 1.7 sinewave1)
+   |+| gain "0.8"
+
+d3 $ whenmod 5 3 (superimpose (0.25 ~>)) $ bassParams $ (0.5 ~>) $ chop 8 $ sound "[dubb dubb:1]/2"
+   |+| cut "1"
+   |+| cutoff "0.01"
+   |+| resonance ((/3) <$> slow 4 saw1)
+
+d1 $ (0.5 <~) $ stack [
+   whenmod 4 3 (density 1.5) $ whenmod 9 2 ((0.25 <~)) $ sound "~ k",
+   (0.75 ~>) $ sound "[~ sn]/2"
+]
+
+d3 $ whenmod 5 3 (superimpose (0.25 ~>)) $ bassParams $ (0.5 ~>) $ chop 8 $ sound "[dubb dubb:1]/2"
+   |+| cut "1"
+   |+| cutoff "0.01"
+   |+| resonance ((/3) <$> slow 4 saw1)
+   |+| shape ((+0.25).(/2) <$> density 1.5 saw1)
+
+mapM_ ($ silence) [d1,d2]
+
+d7 $ whenmod 3 2 (slow 2) $ slow 8 $ every 2 rev $ striate 64 $ sound "ice"
+   |+| cutoff "0.02"
+   |+| resonance "0.001"
+   |+| speed "0.7"
+
+d7 silence
+
+mapM_ ($ silence) [d1,d3,d9]
+
+{-
+piston 2.b
+-}
+
 d1 $ sound "{[~ ~ ~ k:1], [~ sn]/2}"
 
 mapM_ ($ silence) [d2,d3]
@@ -281,68 +343,6 @@ d3 $ (|+| gain ((*0.7) <$> saw1)) $ every 2 (density 2) $ whenmod 3 2 (density 1
 
 mapM_ ($ silence) [d1,d5]
 
-{-
-piston 2.b
--}
-
-d4 $ (0.25 <~) $ slow 16 . chop 32 $ sound (samples "bzl" (density 1.5 "0 1"))
-   |+| speed ((+1.3) <$> density 1.7 sinewave1)
-   |+| gain "0.8"
-
-d2 $ sound "[wt(5,8)]/4"
-
-d1 $ (0.5 <~) $ stack [
-   whenmod 9 2 (0.25 <~) $ sound "~ k",
-   (0.75 ~>) $ sound "[~ sn]/2"
-]
-
-d9 $ (0.25 ~>) $ sound "[~ ~ ~ [~ ~ [~ ~ ~ wtsn] [~ wtsn ~ wtsn]]]/16"
-
-mapM_ ($ silence) [d3,d4,d8]
-
-d7 $ whenmod 3 2 (slow 2) $ slow 8 $ every 2 rev $ striate 64 $ sound "ice"
-   |+| cutoff "0.02"
-   |+| resonance "0.001"
-   |+| speed "0.7"
-
-d3 $ bassParams $ (0.5 ~>) $ chop 8 $ sound "[dubb dubb:1]/2"
-   |+| cut "1"
-   |+| cutoff "0.01"
-   |+| resonance ((/3) <$> slow 4 saw1)
-
-d3 $ whenmod 5 3 (superimpose (0.25 ~>)) $ bassParams $ (0.5 ~>) $ chop 8 $ sound "[dubb dubb:1]/2"
-   |+| cut "1"
-   |+| cutoff "0.01"
-   |+| resonance ((/3) <$> slow 4 saw1)
-
-d4 $ (0.25 <~) $ whenmod 5 4 (density 2) $ slow 16 . chop 32 $ sound (samples "bzl" (density 1.5 "0 1"))
-   |+| speed ((+1.3) <$> density 1.7 sinewave1)
-   |+| gain "0.8"
-
-mapM_ ($ silence) [d7,d9]
-
-d1 $ (0.5 <~) $ stack [
-   whenmod 4 3 (density 1.5) $ whenmod 9 2 ((0.25 <~)) $ sound "~ k",
-   (0.75 ~>) $ sound "[~ sn]/2"
-]
-
-d3 $ whenmod 5 3 (superimpose (0.25 ~>)) $ bassParams $ (0.5 ~>) $ chop 8 $ sound "[dubb dubb:1]/2"
-   |+| cut "1"
-   |+| cutoff "0.01"
-   |+| resonance ((/3) <$> slow 4 saw1)
-   |+| shape ((+0.25).(/2) <$> density 1.5 saw1)
-
-mapM_ ($ silence) [d1,d2]
-
-d7 $ whenmod 3 2 (slow 2) $ slow 8 $ every 2 rev $ striate 64 $ sound "ice"
-   |+| cutoff "0.02"
-   |+| resonance "0.001"
-   |+| speed "0.7"
-
-d7 silence
-
-mapM_ ($ silence) [d1,d3,d9]
-
 {-
 piston 2.c
 -}
@@ -475,6 +475,16 @@ d7 $ every 2 (density 2) $ whenmod 3 2 (density 1.6) $ chop 16 $ bassParams $ so
 
 d2 $ sound "{wt/2, [~ wtsn]/8}"
 
+{- ???
+d9 $ stack [
+   slow 2 $ smash 16 [1,2] $ sound "ant:1"
+   |+| cutoff "0.08" |+| resonance "0.01",
+   slow 16 . chop 32 $ sound (samples "bzl" (density 1.5 "0 1"))
+   |+| speed ((+1.3) <$> density 1.7 sinewave1)
+   |+| gain "0.8"
+]
+-}
+
 d2 $ density (4%3) $ sound "[wtsn ~ wt]"
 d2 $ whenmod 5 3 rev $ density (4%3) $ sound "[wtsn ~ wt]"
 d2 $ whenmod 5 3 (rev . chop 8) $ density (4%3) $ sound "[wtsn ~ wt]"