diff --git a/packages/core/controls.mjs b/packages/core/controls.mjs
index 8f202579d..2f6ad487c 100644
--- a/packages/core/controls.mjs
+++ b/packages/core/controls.mjs
@@ -963,6 +963,60 @@ export const { delaytime, delayt, dt } = registerControl('delaytime', 'delayt',
  *
  */
 export const { lock } = registerControl('lock');
+
+
+/**
+ * Sets the level of the delay signal.
+ *
+ * When using mininotation, you can also optionally add the 'delaytime' and 'delayfeedback' parameter,
+ * separated by ':'.
+ *
+ *
+ * @name shimmer
+ * @param {number | Pattern} level between 0 and 1
+ * @example
+ * s("bd bd").shimmer("<0 .25 .5 1>")
+ * @example
+ * s("bd bd").shimmer("0.65:0.25:0.9 0.65:0.125:0.7")
+ *
+ */
+export const { shimmer } = registerControl(['shimmer', 'delaytime', 'delayfeedback']);
+
+
+/**
+ * Sets mix of the chorus effect
+ *
+ * When using mininotation, you can also optionally add the 'delaytime' and 'delayfeedback' parameter,
+ * separated by ':'.
+ *
+ *
+ * @name chorus
+ * @param {number | Pattern} level between 0 and 1
+ * @example
+ *
+ */
+export const { chorus } = registerControl(['chorus', 'chorusdepth', 'chorusspeed']);
+
+/**
+ * Sets depth of modulation
+ *
+ * @name chorus
+ * @param {number | Pattern} depth between 0 and 1
+ * @example
+ *
+ */
+export const { chorusdepth } = registerControl(['chorusdepth']);
+
+/**
+ * Sets depth of modulation
+ *
+ * @name chorusspeed
+ * @param {number | Pattern} frequency
+ * @example
+ *
+ */
+export const { chorusspeed } = registerControl(['chorusspeed'], 'chorusfreq');
+
 /**
  * Set detune for stacked voices of supported oscillators
  *
diff --git a/packages/core/util.mjs b/packages/core/util.mjs
index bc8440570..6a7484d81 100644
--- a/packages/core/util.mjs
+++ b/packages/core/util.mjs
@@ -373,7 +373,7 @@ export class ClockCollator {
     getTargetClockTime = getUnixTimeSeconds,
     weight = 16,
     offsetDelta = 0.005,
-    checkAfterTime = 2,
+    checkAfterTime = 0.5,
     resetAfterTime = 8,
   }) {
     this.offsetTime;
@@ -417,6 +417,7 @@ export class ClockCollator {
         this.offsetTime = rollingOffsetTime;
       }
     }
+    
 
     return this.offsetTime;
   }
diff --git a/packages/osc/osc.mjs b/packages/osc/osc.mjs
index 4b9ab14e7..b8843be39 100644
--- a/packages/osc/osc.mjs
+++ b/packages/osc/osc.mjs
@@ -50,6 +50,12 @@ export function parseControlsFromHap(hap, cps) {
   }
   controls.bank && (controls.s = controls.bank + controls.s);
   controls.roomsize && (controls.size = parseNumeral(controls.roomsize));
+  if (controls.sustain != null) {
+    controls.hold = controls.sustain;
+    delete controls.sustain;
+  }
+
+
   // speed adjustment for CPS is handled on the DSP side in superdirt and pattern side in Strudel,
   // so we need to undo the adjustment before sending the message to superdirt.
   controls.unit === 'c' && controls.speed != null && (controls.speed = controls.speed / cps);
@@ -64,7 +70,6 @@ export async function oscTrigger(t_deprecate, hap, currentTime, cps = 1, targetT
   const osc = await connect();
   const controls = parseControlsFromHap(hap, cps);
   const keyvals = Object.entries(controls).flat();
-
   const ts = Math.round(collator.calculateTimestamp(currentTime, targetTime) * 1000);
   const message = new OSC.Message('/dirt/play', ...keyvals);
   const bundle = new OSC.Bundle([message], ts);