diff --git a/website/src/pages/learn/effects.mdx b/website/src/pages/learn/effects.mdx
index f5ee12ab..4982f4cd 100644
--- a/website/src/pages/learn/effects.mdx
+++ b/website/src/pages/learn/effects.mdx
@@ -49,6 +49,10 @@ Each filter has 2 parameters:
 
 <JsDoc client:idle name="bpq" h={0} />
 
+## ftype
+
+<JsDoc client:idle name="ftype" h={0} />
+
 ## vowel
 
 <JsDoc client:idle name="vowel" h={0} />
@@ -111,66 +115,6 @@ There is one filter envelope for each filter type and thus one set of envelope f
 
 <JsDoc client:idle name="lpenv" h={0} />
 
-## hpattack
-
-<JsDoc client:idle name="hpattack" h={0} />
-
-## hpdecay
-
-<JsDoc client:idle name="hpdecay" h={0} />
-
-## hpsustain
-
-<JsDoc client:idle name="hpsustain" h={0} />
-
-## hprelease
-
-<JsDoc client:idle name="hprelease" h={0} />
-
-## hpenv
-
-<JsDoc client:idle name="hpenv" h={0} />
-
-## hpattack
-
-<JsDoc client:idle name="hpattack" h={0} />
-
-## hpdecay
-
-<JsDoc client:idle name="hpdecay" h={0} />
-
-## hpsustain
-
-<JsDoc client:idle name="hpsustain" h={0} />
-
-## hprelease
-
-<JsDoc client:idle name="hprelease" h={0} />
-
-## hpenv
-
-<JsDoc client:idle name="hpenv" h={0} />
-
-## bpattack
-
-<JsDoc client:idle name="bpattack" h={0} />
-
-## bpdecay
-
-<JsDoc client:idle name="bpdecay" h={0} />
-
-## bpsustain
-
-<JsDoc client:idle name="bpsustain" h={0} />
-
-## bprelease
-
-<JsDoc client:idle name="bprelease" h={0} />
-
-## bpenv
-
-<JsDoc client:idle name="bpenv" h={0} />
-
 # Dynamics
 
 ## gain