diff --git a/sclang-play/tutorial.sc b/sclang-play/tutorial.sc
index 787b4d2..d95c9fa 100644
--- a/sclang-play/tutorial.sc
+++ b/sclang-play/tutorial.sc
@@ -2,15 +2,32 @@
   {
     var pitchOsc;
     var ampOsc;
-    pitchOsc = { 300 + SinOsc.kr(20, 1.5pi, 300, 300); };
-    ampOsc = SinOsc.kr(0.1, 1.5pi, 0.5, 0.5);
-    [
-      SinOsc.ar(pitchOsc, 0, ampOsc),
-      SinOsc.ar(pitchOsc, 0, ampOsc)
-    ];
+    pitchOsc = { 300 + SinOsc.kr(0.1, 1.5pi, 20, 20); };
+    ampOsc = SinOsc.kr(0.5, 1.5pi, 1.0, 1.0);
+    SinOsc.ar([pitchOsc, pitchOsc], 0, ampOsc);
   }.play;
 )
 
 (
   { [SinOsc.ar(440, 0, 0.2), SinOsc.ar(442, 0, 0.2)] }.play;
 )
+
+(
+  {
+    var freq;
+    freq = [[600, 880], [400, 660], 1320, 880].choose;
+    SinOsc.ar(freq, 0, 0.2);
+  }.play;
+)
+
+(
+  {
+    Pan2.ar(PinkNoise.ar(0.2), SinOsc.kr(0.5));
+  }.play;
+)
+
+(
+  {
+    Pan2.ar(PinkNoise.ar(0.2), -0.3);
+  }.play;
+)