diff --git a/src/Index.tsx b/src/Index.tsx
index bcde931..279721f 100644
--- a/src/Index.tsx
+++ b/src/Index.tsx
@@ -70,6 +70,15 @@ function Index() {
                     onValueChange={([v]) => setState({ ...state, wobbleSpeed: v })}
                 />
             </div>
+            <div className="flex flex-col gap-2">
+                <span className="text-sm font-medium">Wobble Randomness</span>
+                <Slider
+                    value={[state.wobbleRandomness]}
+                    min={0}
+                    max={100}
+                    onValueChange={([v]) => setState({ ...state, wobbleRandomness: v })}
+                />
+            </div>
         </div>
     );
 
diff --git a/src/components/canvas/MorphableShape.tsx b/src/components/canvas/MorphableShape.tsx
index e891d33..38e097d 100644
--- a/src/components/canvas/MorphableShape.tsx
+++ b/src/components/canvas/MorphableShape.tsx
@@ -46,9 +46,10 @@ export default function MorphableShape({
 
     const flatPoints = useMemo(() => {
         const wobbleAmount = state.wobble * 0.3; // scale wobble to reasonable range
-        const wobbled = applyWobble(morphedPoints, time, wobbleAmount);
+        const randomness = state.wobbleRandomness / 100;
+        const wobbled = applyWobble(morphedPoints, time, wobbleAmount, randomness);
         return wobbled.flatMap((p) => [p.x, p.y]);
-    }, [morphedPoints, time, state.wobble]);
+    }, [morphedPoints, time, state.wobble, state.wobbleRandomness]);
 
     return (
         <Group x={state.x} y={state.y} draggable onDragMove={handleDrag}>
diff --git a/src/hooks/useShapeState.ts b/src/hooks/useShapeState.ts
index b7a9897..c918a8e 100644
--- a/src/hooks/useShapeState.ts
+++ b/src/hooks/useShapeState.ts
@@ -1,5 +1,5 @@
-import { useState, useEffect, useRef } from "react";
 import type { ShapeState } from "@/types/shape";
+import { useEffect, useRef, useState } from "react";
 
 const DEFAULT_STATE: ShapeState = {
     x: 0,
@@ -9,6 +9,7 @@ const DEFAULT_STATE: ShapeState = {
     size: 50, // medium
     wobble: 20, // subtle
     wobbleSpeed: 50, // medium
+    wobbleRandomness: 50, // medium
     grain: 0, // none
     color: "#FF0000", // red (C)
     octave: 4, // middle octave
@@ -26,6 +27,7 @@ export function useShapeState(centerX: number, centerY: number) {
         x: centerX,
         y: centerY,
     });
+    void initialStateRef;
 
     // update center position when canvas resizes
     useEffect(() => {
diff --git a/src/lib/shapes/wobble.ts b/src/lib/shapes/wobble.ts
index 5321d5f..2cb1616 100644
--- a/src/lib/shapes/wobble.ts
+++ b/src/lib/shapes/wobble.ts
@@ -2,14 +2,22 @@ import { noise2D } from "@/lib/noise";
 import type { Point } from "./points";
 
 // apply noise-based displacement to points. this gives a wobble effect. points are displaced radially
-export function applyWobble(points: Point[], time: number, amount: number, noiseScale = 0.5): Point[] {
+export function applyWobble(
+    points: Point[],
+    time: number,
+    amount: number,
+    randomness: number,
+    noiseScale = 0.5,
+): Point[] {
     if (amount === 0) return points;
 
     return points.map((point, i) => {
-        // use point index and time for noise input
         const noiseX = i * noiseScale;
         const noiseY = time;
-        const displacement = noise2D(noiseX, noiseY) * amount;
+        const noiseValue = noise2D(noiseX, noiseY);
+        const sineValue = Math.sin(time * 2 + i * noiseScale);
+        const blended = sineValue * (1 - randomness) + noiseValue * randomness;
+        const displacement = blended * amount;
 
         const angle = Math.atan2(point.y, point.x);
 
diff --git a/src/types/shape.ts b/src/types/shape.ts
index 511da57..444aeb0 100644
--- a/src/types/shape.ts
+++ b/src/types/shape.ts
@@ -8,6 +8,7 @@ export interface ShapeState {
     size: number; // 0-100, controls volume
     wobble: number; // 0-100, visual wobble amount
     wobbleSpeed: number; // 0-100, wobble animation speed
+    wobbleRandomness: number; // 0-100, noise vs sine blend
     grain: number; // 0-100, noise mix
     color: string; // hex color from clavier keyboard
     octave: number; // 1-8, frequency multiplier