doc: random functions

tutorial/tutorial.mdx

@@ -450,8 +450,36 @@ Stacks the given pattern to the current pattern:
 
 <MiniRepl tune={`"c4,eb4,g4".stack("bb4,d5")`} />
 
+## Randomness
+
+These methods add random behavior to your Patterns.  
+
 {{ 'Pattern.degradeBy' | jsdoc }}
 
+{{ 'Pattern.degrade' | jsdoc }}
+
+{{ 'Pattern.undegradeBy' | jsdoc }}
+
+{{ 'Pattern.sometimesBy' | jsdoc }}
+
+{{ 'Pattern.sometimes' | jsdoc }}
+
+{{ 'Pattern.someCyclesBy' | jsdoc }}
+
+{{ 'Pattern.someCycles' | jsdoc }}
+
+{{ 'Pattern.often' | jsdoc }}
+
+{{ 'Pattern.rarely' | jsdoc }}
+
+{{ 'Pattern.almostNever' | jsdoc }}
+
+{{ 'Pattern.almostAlways' | jsdoc }}
+
+{{ 'Pattern.never' | jsdoc }}
+
+{{ 'Pattern.always' | jsdoc }}
+
 ## Tone API
 
 To make the sounds more interesting, we can use Tone.js instruments ands effects.