diff --git a/2020-05-22.tidal b/2020-05-22.tidal
index d188910..d405d2d 100644
--- a/2020-05-22.tidal
+++ b/2020-05-22.tidal
@@ -28,19 +28,19 @@ do
       pat = "<0 2 5 4>"
       oct = -2
   d1 $ stack [
-    n (toScale Chords.minor (arp + pat)) # s "superchip" # release 0.05,
-    n (toScale Chords.minor (arp2 + pat - 4)) # s "superchip" # release 0.8,
-    n ("0*8" + (slow 2 pat) - 14) # s "superchip" # release 0.3 # cut 2
+    n (toScale Chords.minor (arp + pat)) # s "superchip" # release 0.05
+    , n (toScale Chords.minor (arp2 + pat - 4)) # s "superchip" # release 0.8
+    , n ("0*8" + (slow 2 pat) - 14) # s "superchip" # release 0.3 # cut 2
     ] # orbit 1 # room 0.1 # size 0.93
 
 d2 $ s "clubkick*4"
-  # n 1
-  # speed 0.5
-  # crunch 2
-  # orbit 2 # room 0.5
+  # n 2
+  # gain 1.8
+  # speed 0.8
 
 d3 $ s "[~ dr2]*4"
- # orbit 2
+ # orbit 1
+ # room 0.9
 
 solo 4
 
diff --git a/shell.nix b/shell.nix
index 2eaa561..728efac 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,4 +1,4 @@
-{ nixpkgs ? import (fetchTarball https://github.com/NixOS/nixpkgs/archive/19.09.tar.gz) {} }:
+{ nixpkgs ? import (fetchTarball https://github.com/NixOS/nixpkgs/archive/20.09.tar.gz) {} }:
 let
   inherit (nixpkgs) pkgs;
   inherit (pkgs) haskellPackages;
diff --git a/test.tidal b/test.tidal
index a193a62..92247c4 100644
--- a/test.tidal
+++ b/test.tidal
@@ -4,9 +4,9 @@ hush
 
 d1 $ fast 4 (sound "bd")
   # freq 250
-  # overgain 0.4
-  # room 4
-  # orbit 0
+  -- # overgain 0.4
+  -- # room 4
+  -- # orbit 0
 
 d2 $ sound "[~ ho]*4"
   # gain 0.7