diff --git a/packages/automaton-fxs/src/tests/add.test.ts b/packages/automaton-fxs/src/tests/add.test.ts
index cd8aa63d..292514d2 100644
--- a/packages/automaton-fxs/src/tests/add.test.ts
+++ b/packages/automaton-fxs/src/tests/add.test.ts
@@ -8,7 +8,7 @@ import type { SerializedAutomaton } from '@fms-cat/automaton';
 const defaultData: SerializedAutomaton = {
   resolution: 100.0,
   curves: [
-    { nodes: [ { time: 0.0, value: 0.0 }, { time: 1.0, value: 1.0 } ] },
+    { nodes: [ [ 0.0, 0.0 ], [ 1.0, 1.0 ] ] },
   ],
   channels: []
 };
diff --git a/packages/automaton-fxs/src/tests/repeat.test.ts b/packages/automaton-fxs/src/tests/repeat.test.ts
index 41825840..1aab3a17 100644
--- a/packages/automaton-fxs/src/tests/repeat.test.ts
+++ b/packages/automaton-fxs/src/tests/repeat.test.ts
@@ -8,7 +8,7 @@ import type { SerializedAutomaton } from '@fms-cat/automaton';
 const defaultData: SerializedAutomaton = {
   resolution: 100.0,
   curves: [
-    { nodes: [ { time: 0.0, value: 0.0 }, { time: 1.0, value: 1.0 } ] },
+    { nodes: [ [ 0.0, 0.0 ], [ 1.0, 1.0 ] ] },
   ],
   channels: []
 };
diff --git a/packages/automaton-with-gui/src/CurveWithGUI.ts b/packages/automaton-with-gui/src/CurveWithGUI.ts
index 1b1f5827..2c22a4f3 100644
--- a/packages/automaton-with-gui/src/CurveWithGUI.ts
+++ b/packages/automaton-with-gui/src/CurveWithGUI.ts
@@ -38,16 +38,8 @@ export class CurveWithGUI extends Curve {
    */
   public static readonly DEFAULT_DATA: SerializedCurve = {
     nodes: [
-      {
-        time: 0.0,
-        value: 0.0,
-        out: { time: CURVE_DEFAULT_HANDLE_LENGTH, value: 0.0 }
-      },
-      {
-        time: 1.0,
-        value: 0.0,
-        in: { time: -CURVE_DEFAULT_HANDLE_LENGTH, value: 0.0 }
-      }
+      [ 0.0, 0.0, 0.0, 0.0, CURVE_DEFAULT_HANDLE_LENGTH, 0.0 ],
+      [ 1.0, 0.0, -CURVE_DEFAULT_HANDLE_LENGTH, 0.0, 0.0, 0.0 ],
     ],
     fxs: []
   };
@@ -117,12 +109,6 @@ export class CurveWithGUI extends Curve {
    * @param data Data of curve
    */
   public deserialize( data: SerializedCurve ): void {
-    data.nodes.forEach( ( node ) => {
-      // fill missing handles
-      node.in = node.in ?? { time: 0.0, value: 0.0 };
-      node.out = node.out ?? { time: 0.0, value: 0.0 };
-    } );
-
     data.fxs?.forEach( ( fx ) => {
       // fill missing params
       const defParams = this.__automaton.getFxDefinitionParams( fx.def );
@@ -274,13 +260,15 @@ export class CurveWithGUI extends Curve {
    */
   public createNode( time: number, value: number ): BezierNode & WithID {
     const id = genID();
-    const data = {
-      $id: id,
+    const data: any = {
       time,
       value,
-      in: { time: -CURVE_DEFAULT_HANDLE_LENGTH, value: 0.0 },
-      out: { time: CURVE_DEFAULT_HANDLE_LENGTH, value: 0.0 }
+      inTime: -CURVE_DEFAULT_HANDLE_LENGTH,
+      inValue: 0.0,
+      outTime: CURVE_DEFAULT_HANDLE_LENGTH,
+      outValue: 0.0,
     };
+    data.$id = id;
     this.__nodes.push( data );
     this.__sortNodes();
 
@@ -435,8 +423,7 @@ export class CurveWithGUI extends Curve {
 
     const newTime = ( dir === 'in' ) ? Math.min( 0.0, time ) : Math.max( 0.0, time );
 
-    const handle = node[ dir ];
-    handle.time = newTime;
+    node[ dir === 'in' ? 'inTime' : 'outTime' ] = newTime;
 
     this.precalc();
 
@@ -458,8 +445,7 @@ export class CurveWithGUI extends Curve {
 
     const node = this.__nodes[ index ];
 
-    const handle = node[ dir ];
-    handle.value = value;
+    node[ dir === 'in' ? 'inValue' : 'outValue' ] = value;
 
     this.precalc();
 
@@ -479,10 +465,8 @@ export class CurveWithGUI extends Curve {
     if ( index === 0 && dir === 'in' ) { return; }
 
     const node = this.__nodes[ index ];
-    node[ dir ] = {
-      time: ( ( dir === 'in' ) ? -1.0 : 1.0 ) * CURVE_DEFAULT_HANDLE_LENGTH,
-      value: 0.0
-    };
+    node[ dir === 'in' ? 'inTime' : 'outTime' ] = ( ( dir === 'in' ) ? -1.0 : 1.0 ) * CURVE_DEFAULT_HANDLE_LENGTH;
+    node[ dir === 'in' ? 'inValue' : 'outValue' ] = 0.0;
 
     this.precalc();
 
@@ -814,20 +798,23 @@ export class CurveWithGUI extends Curve {
    */
   private __serializeNodes(): SerializedBezierNode[] {
     return this.__nodes.map( ( node ) => {
-      const data: SerializedBezierNode = {};
-      if ( node.time !== 0.0 ) {
-        data.time = node.time;
-      }
-      if ( node.value !== 0.0 ) {
-        data.value = node.value;
-      }
-      if ( node.in.time !== 0.0 || node.in.value !== 0.0 ) {
-        data.in = jsonCopy( node.in );
-      }
-      if ( node.out.time !== 0.0 || node.out.value !== 0.0 ) {
-        data.out = jsonCopy( node.out );
+      const { time, value, inTime, inValue, outTime, outValue } = node;
+
+      if ( outValue !== 0.0 ) {
+        return [ time, value, inTime, inValue, outTime, outValue ];
+      } else if ( outTime !== 0.0 ) {
+        return [ time, value, inTime, inValue, outTime ];
+      } else if ( inValue !== 0.0 ) {
+        return [ time, value, inTime, inValue ];
+      } else if ( inTime !== 0.0 ) {
+        return [ time, value, inTime ];
+      } else if ( value !== 0.0 ) {
+        return [ time, value ];
+      } else if ( time !== 0.0 ) {
+        return [ time ];
+      } else {
+        return [];
       }
-      return data;
     } );
   }
 
diff --git a/packages/automaton-with-gui/src/compat/compat.ts b/packages/automaton-with-gui/src/compat/compat.ts
index 14d359ca..c916fd69 100644
--- a/packages/automaton-with-gui/src/compat/compat.ts
+++ b/packages/automaton-with-gui/src/compat/compat.ts
@@ -1,6 +1,5 @@
 import { SerializedAutomatonWithGUI, defaultDataWithGUI } from '../types/SerializedAutomatonWithGUI';
 import { jsonCopy } from '../utils/jsonCopy';
-import { preversionCompat } from './preversionCompat';
 import { v1Compat } from './v1Compat';
 import { v2Compat } from './v2Compat';
 import { v3Compat } from './v3Compat';
@@ -21,10 +20,8 @@ export function compat( data?: any ): SerializedAutomatonWithGUI {
   let version = parseFloat( newData.version ) || parseFloat( newData.v );
 
   if ( !version && !newData.rev ) {
-    newData = preversionCompat( newData );
-    if ( newData === null ) {
-      return jsonCopy( defaultDataWithGUI );
-    }
+    // assuming it's latest
+    return newData;
   }
 
   if ( newData.rev ) { // fuck
diff --git a/packages/automaton-with-gui/src/compat/preversionCompat.ts b/packages/automaton-with-gui/src/compat/preversionCompat.ts
deleted file mode 100644
index e7128f0c..00000000
--- a/packages/automaton-with-gui/src/compat/preversionCompat.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-export function preversionCompat( data: any ): any {
-  if ( data.gui ) {
-    delete data.gui; // the gui settings are incompatible
-    return data;
-  } else {
-    console.error( 'Loaded data is not compatible with this revision' );
-    return null;
-  }
-}
diff --git a/packages/automaton-with-gui/src/compat/v2Compat.ts b/packages/automaton-with-gui/src/compat/v2Compat.ts
index 24267b3e..89efdb77 100644
--- a/packages/automaton-with-gui/src/compat/v2Compat.ts
+++ b/packages/automaton-with-gui/src/compat/v2Compat.ts
@@ -1,17 +1,18 @@
 import { defaultGUISettings } from '../types/GUISettings';
 import { jsonCopy } from '../utils/jsonCopy';
-import type { FxSection, SerializedCurve } from '@fms-cat/automaton';
+import type { FxSection } from '@fms-cat/automaton';
 import type { V2FxSection } from './v2types/V2FxSection';
 import type { V2SerializedData } from './v2types/V2SerializedData';
 import type { V3SerializedAutomatonWithGUI } from './v3types/V3SerializedAutomatonWithGUI';
 import type { V3SerializedChannel } from './v3types/V3SerializedChannel';
+import type { V3SerializedCurve } from './v3types/V3SerializedCurve';
 
 export function v2Compat( data: V2SerializedData ): V3SerializedAutomatonWithGUI {
-  const curves: SerializedCurve[] = [];
+  const curves: V3SerializedCurve[] = [];
   const channels: { [ name: string ]: V3SerializedChannel } = {};
 
   Object.entries( data.params ).forEach( ( [ name, param ] ) => {
-    const curve: SerializedCurve = {
+    const curve: V3SerializedCurve = {
       nodes: param.nodes,
       fxs: param.fxs.map( ( fx: V2FxSection ) => {
         const newFx: FxSection = {
diff --git a/packages/automaton-with-gui/src/compat/v3Compat.ts b/packages/automaton-with-gui/src/compat/v3Compat.ts
index 5a18fd83..fdbef0bf 100644
--- a/packages/automaton-with-gui/src/compat/v3Compat.ts
+++ b/packages/automaton-with-gui/src/compat/v3Compat.ts
@@ -1,11 +1,27 @@
-import { SerializedChannel } from '@fms-cat/automaton';
 import { defaultGUISettings } from '../types/GUISettings';
 import type { SerializedAutomatonWithGUI } from '../types/SerializedAutomatonWithGUI';
+import type { SerializedBezierNode, SerializedChannel, SerializedCurve } from '@fms-cat/automaton';
 import type { V3SerializedAutomatonWithGUI } from './v3types/V3SerializedAutomatonWithGUI';
 
 export function v3Compat( data: V3SerializedAutomatonWithGUI ): SerializedAutomatonWithGUI {
   const channels: [ name: string, channel: SerializedChannel ][] = [];
 
+  const curves: SerializedCurve[] = data.curves.map( ( curve ) => {
+    const nodes = curve.nodes.map( ( node ) => [
+      node.time,
+      node.value,
+      node.in?.time,
+      node.in?.value,
+      node.out?.time,
+      node.out?.value,
+    ] as SerializedBezierNode );
+
+    return {
+      nodes,
+      fxs: curve.fxs
+    };
+  } );
+
   Object.entries( data.channels ).forEach( ( [ name, channel ] ) => {
     channels.push( [ name, channel ] );
   } );
@@ -13,7 +29,7 @@ export function v3Compat( data: V3SerializedAutomatonWithGUI ): SerializedAutoma
   const newData: SerializedAutomatonWithGUI = {
     version: data.version,
     resolution: data.resolution,
-    curves: data.curves,
+    curves,
     channels,
     labels: data.labels,
     guiSettings: {
diff --git a/packages/automaton-with-gui/src/compat/v3types/V3SerializedAutomaton.ts b/packages/automaton-with-gui/src/compat/v3types/V3SerializedAutomaton.ts
index e84a9ee4..a84c6e16 100644
--- a/packages/automaton-with-gui/src/compat/v3types/V3SerializedAutomaton.ts
+++ b/packages/automaton-with-gui/src/compat/v3types/V3SerializedAutomaton.ts
@@ -1,5 +1,5 @@
-import type { SerializedCurve } from '@fms-cat/automaton';
 import type { V3SerializedChannel } from './V3SerializedChannel';
+import type { V3SerializedCurve } from './V3SerializedCurve';
 
 /**
  * Interface of serialized automaton data.
@@ -13,7 +13,7 @@ export interface V3SerializedAutomaton {
   /**
    * Curves of the automaton.
    */
-  curves: SerializedCurve[];
+  curves: V3SerializedCurve[];
 
   /**
    * Channels of the automaton.
diff --git a/packages/automaton/src/types/SerializedBezierControlPoint.ts b/packages/automaton-with-gui/src/compat/v3types/V3SerializedBezierControlPoint.ts
similarity index 81%
rename from packages/automaton/src/types/SerializedBezierControlPoint.ts
rename to packages/automaton-with-gui/src/compat/v3types/V3SerializedBezierControlPoint.ts
index 38af145f..774b4dba 100644
--- a/packages/automaton/src/types/SerializedBezierControlPoint.ts
+++ b/packages/automaton-with-gui/src/compat/v3types/V3SerializedBezierControlPoint.ts
@@ -2,7 +2,7 @@
  * Serialized variant of {@link BezierControlPoint}.
  * Some values are optional.
  */
-export interface SerializedBezierControlPoint {
+export interface V3SerializedBezierControlPoint {
   /**
    * Time of the control point.
    */
diff --git a/packages/automaton-with-gui/src/compat/v3types/V3SerializedBezierNode.ts b/packages/automaton-with-gui/src/compat/v3types/V3SerializedBezierNode.ts
new file mode 100644
index 00000000..bbca36b2
--- /dev/null
+++ b/packages/automaton-with-gui/src/compat/v3types/V3SerializedBezierNode.ts
@@ -0,0 +1,31 @@
+import type { V3SerializedBezierControlPoint } from './V3SerializedBezierControlPoint';
+
+/**
+ * Serialized variant of {@link BezierNode}.
+ * Some values are optional.
+ */
+export interface V3SerializedBezierNode {
+  /**
+   * Time of the node.
+   * `0.0` by default.
+   */
+  time?: number;
+
+  /**
+   * Value of the node.
+   * `0.0` by default.
+   */
+  value?: number;
+
+  /**
+   * Bezier control point of inlet.
+   * `{ time: 0.0, value: 0.0 }` by default.
+   */
+  in?: V3SerializedBezierControlPoint;
+
+  /**
+   * Bezier control point of outlet.
+   * `{ time: 0.0, value: 0.0 }` by default.
+   */
+  out?: V3SerializedBezierControlPoint;
+}
diff --git a/packages/automaton-with-gui/src/compat/v3types/V3SerializedCurve.ts b/packages/automaton-with-gui/src/compat/v3types/V3SerializedCurve.ts
new file mode 100644
index 00000000..b638e845
--- /dev/null
+++ b/packages/automaton-with-gui/src/compat/v3types/V3SerializedCurve.ts
@@ -0,0 +1,17 @@
+import type { SerializedFxSection } from '@fms-cat/automaton';
+import type { V3SerializedBezierNode } from './V3SerializedBezierNode';
+
+/**
+ * Interface of a serialized curve.
+ */
+export interface V3SerializedCurve {
+  /**
+   * Bezier nodes of the curve.
+   */
+  nodes: V3SerializedBezierNode[];
+
+  /**
+   * Fx sections of the curve.
+   */
+  fxs?: SerializedFxSection[];
+}
diff --git a/packages/automaton-with-gui/src/minimizeData.ts b/packages/automaton-with-gui/src/minimizeData.ts
index 10640977..8166b664 100644
--- a/packages/automaton-with-gui/src/minimizeData.ts
+++ b/packages/automaton-with-gui/src/minimizeData.ts
@@ -51,23 +51,16 @@ function minimizeNode(
   data: SerializedBezierNode,
   options: MinimizeOptions
 ): SerializedBezierNode {
-  const time = precOrUndefined( data.time, options.precisionTime );
-  const value = precOrUndefined( data.value, options.precisionValue );
-  const inPoint = data.in ? {
-    time: prec( data.in.time, options.precisionTime ),
-    value: prec( data.in.value, options.precisionValue )
-  } : undefined;
-  const outPoint = data.out ? {
-    time: prec( data.out.time, options.precisionTime ),
-    value: prec( data.out.value, options.precisionValue )
-  } : undefined;
-
-  return {
-    time,
-    value,
-    in: inPoint,
-    out: outPoint
-  };
+  return [
+    precOrUndefined( data[ 0 ], options.precisionTime ),
+    precOrUndefined( data[ 1 ], options.precisionValue ),
+    precOrUndefined( data[ 2 ], options.precisionTime ),
+    precOrUndefined( data[ 3 ], options.precisionValue ),
+    precOrUndefined( data[ 4 ], options.precisionTime ),
+    precOrUndefined( data[ 5 ], options.precisionValue ),
+  ].filter( ( element ) => {
+    return element != null;
+  } ) as SerializedBezierNode;
 }
 
 function minimizeFx(
diff --git a/packages/automaton-with-gui/src/view/components/CurveEditorNode.tsx b/packages/automaton-with-gui/src/view/components/CurveEditorNode.tsx
index 2c05df72..4981a7da 100644
--- a/packages/automaton-with-gui/src/view/components/CurveEditorNode.tsx
+++ b/packages/automaton-with-gui/src/view/components/CurveEditorNode.tsx
@@ -165,11 +165,11 @@ const CurveEditorNode = ( props: {
     ( dir: 'in' | 'out' ): void => {
       if ( !curve ) { return; }
 
-      const tPrev = node[ dir ]?.time || 0.0;
-      const vPrev = node[ dir ]?.value || 0.0;
+      const tPrev = node[ dir === 'in' ? 'inTime' : 'outTime' ];
+      const vPrev = node[ dir === 'in' ? 'inValue' : 'outValue' ];
       const dirOp = dir === 'in' ? 'out' : 'in';
-      const tOpPrev = node[ dirOp ]?.time || 0.0;
-      const vOpPrev = node[ dirOp ]?.value || 0.0;
+      const tOpPrev = node[ dir === 'in' ? 'outTime' : 'inTime' ];
+      const vOpPrev = node[ dir === 'in' ? 'outValue' : 'inValue' ];
       const xPrev = dt2dx( tPrev, range, size.width );
       const yPrev = dv2dy( vPrev, range, size.height );
       const slPrev = Math.sqrt( xPrev * xPrev + yPrev * yPrev );
@@ -283,8 +283,8 @@ const CurveEditorNode = ( props: {
     ( dir: 'in' | 'out' ): void => {
       if ( !curve ) { return; }
 
-      const timePrev = node[ dir ]!.time;
-      const valuePrev = node[ dir ]!.value;
+      const timePrev = node[ dir === 'in' ? 'inTime' : 'outTime' ];
+      const valuePrev = node[ dir === 'in' ? 'inValue' : 'outValue' ];
 
       curve.moveHandleTime( node.$id, dir, 0.0 );
       curve.moveHandleValue( node.$id, dir, 0.0 );
@@ -349,36 +349,32 @@ const CurveEditorNode = ( props: {
         v2y( node.value, range, size.height )
       })` }
     >
-      { node.in && <>
-        <HandleLine
-          x2={ dt2dx( node.in.time, range, size.width ) }
-          y2={ dv2dy( node.in.value, range, size.height ) }
-        />
-        <HandleCircle
-          r="4"
-          transform={ `translate(${
-            dt2dx( node.in.time, range, size.width )
-          },${
-            dv2dy( node.in.value, range, size.height )
-          })` }
-          onMouseDown={ handleHandleInClick }
-        />
-      </> }
-      { node.out && <>
-        <HandleLine
-          x2={ dt2dx( node.out.time, range, size.width ) }
-          y2={ dv2dy( node.out.value, range, size.height ) }
-        />
-        <HandleCircle
-          r="4"
-          transform={ `translate(${
-            dt2dx( node.out.time, range, size.width )
-          },${
-            dv2dy( node.out.value, range, size.height )
-          })` }
-          onMouseDown={ handleHandleOutClick }
-        />
-      </> }
+      <HandleLine
+        x2={ dt2dx( node.inTime, range, size.width ) }
+        y2={ dv2dy( node.inValue, range, size.height ) }
+      />
+      <HandleCircle
+        r="4"
+        transform={ `translate(${
+          dt2dx( node.inTime, range, size.width )
+        },${
+          dv2dy( node.inValue, range, size.height )
+        })` }
+        onMouseDown={ handleHandleInClick }
+      />
+      <HandleLine
+        x2={ dt2dx( node.outTime, range, size.width ) }
+        y2={ dv2dy( node.outValue, range, size.height ) }
+      />
+      <HandleCircle
+        r="4"
+        transform={ `translate(${
+          dt2dx( node.outTime, range, size.width )
+        },${
+          dv2dy( node.outValue, range, size.height )
+        })` }
+        onMouseDown={ handleHandleOutClick }
+      />
       <NodeBody
         as="circle"
         r="5"
diff --git a/packages/automaton-with-gui/src/view/components/CurveListEntry.tsx b/packages/automaton-with-gui/src/view/components/CurveListEntry.tsx
index e6e1375b..3438d378 100644
--- a/packages/automaton-with-gui/src/view/components/CurveListEntry.tsx
+++ b/packages/automaton-with-gui/src/view/components/CurveListEntry.tsx
@@ -95,7 +95,7 @@ const CurveListEntry = ( props: CurveListEntryProps ): JSX.Element => {
         commands: [
           {
             type: 'automaton/createCurve',
-            data: newData
+            data: newData.serializeWithID()
           }
         ]
       } );
diff --git a/packages/automaton-with-gui/src/view/components/InspectorCurveNode.tsx b/packages/automaton-with-gui/src/view/components/InspectorCurveNode.tsx
index d9891a60..f6f85865 100644
--- a/packages/automaton-with-gui/src/view/components/InspectorCurveNode.tsx
+++ b/packages/automaton-with-gui/src/view/components/InspectorCurveNode.tsx
@@ -78,7 +78,7 @@ const InspectorCurveNode = ( props: Props ): JSX.Element | null => {
     <InspectorItem name={ useBeatInGUI ? 'In Beat' : 'In Time' }>
       <NumberParam
         type="float"
-        value={ timeToDisplay( node.in?.time ?? 0.0 ) }
+        value={ timeToDisplay( node.inTime ) }
         onChange={ ( value ) => { curve.moveHandleTime( node.$id, 'in', displayToTime( value ) ); } }
         onSettle={ ( value, valuePrev ) => {
           dispatch( {
@@ -101,7 +101,7 @@ const InspectorCurveNode = ( props: Props ): JSX.Element | null => {
     <InspectorItem name="In Value">
       <NumberParam
         type="float"
-        value={ node.in?.value ?? 0.0 }
+        value={ node.inValue }
         onChange={ ( value ) => { curve.moveHandleValue( node.$id, 'in', value ); } }
         onSettle={ ( value, valuePrev ) => {
           dispatch( {
@@ -127,7 +127,7 @@ const InspectorCurveNode = ( props: Props ): JSX.Element | null => {
     <InspectorItem name={ useBeatInGUI ? 'Out Beat' : 'Out Time' }>
       <NumberParam
         type="float"
-        value={ timeToDisplay( node.out?.time ?? 0.0 ) }
+        value={ timeToDisplay( node.outTime ) }
         onChange={ ( value ) => { curve.moveHandleTime( node.$id, 'out', displayToTime( value ) ); } }
         onSettle={ ( value, valuePrev ) => {
           dispatch( {
@@ -150,7 +150,7 @@ const InspectorCurveNode = ( props: Props ): JSX.Element | null => {
     <InspectorItem name="Out Value">
       <NumberParam
         type="float"
-        value={ node.out?.value ?? 0.0 }
+        value={ node.outValue }
         onChange={ ( value ) => { curve.moveHandleValue( node.$id, 'out', value ); } }
         onSettle={ ( value, valuePrev ) => {
           dispatch( {
diff --git a/packages/automaton/src/Curve.ts b/packages/automaton/src/Curve.ts
index 49bf2b34..b5470573 100644
--- a/packages/automaton/src/Curve.ts
+++ b/packages/automaton/src/Curve.ts
@@ -55,10 +55,12 @@ export class Curve {
    */
   public deserialize( data: SerializedCurve ): void {
     this.__nodes = data.nodes.map( ( node ) => ( {
-      time: node.time ?? 0.0,
-      value: node.value ?? 0.0,
-      in: node.in ?? { time: 0.0, value: 0.0 },
-      out: node.out ?? { time: 0.0, value: 0.0 }
+      time: node[ 0 ] ?? 0.0,
+      value: node[ 1 ] ?? 0.0,
+      inTime: node[ 2 ] ?? 0.0,
+      inValue: node[ 3 ] ?? 0.0,
+      outTime: node[ 4 ] ?? 0.0,
+      outValue: node[ 5 ] ?? 0.0,
     } ) );
 
     this.__fxs = [];
diff --git a/packages/automaton/src/index.ts b/packages/automaton/src/index.ts
index 915d0914..f47b857f 100644
--- a/packages/automaton/src/index.ts
+++ b/packages/automaton/src/index.ts
@@ -1,5 +1,4 @@
 export type { AutomatonOptions } from './types/AutomatonOptions';
-export type { BezierControlPoint } from './types/BezierControlPoint';
 export type { BezierNode } from './types/BezierNode';
 export type { ChannelUpdateEvent } from './types/ChannelUpdateEvent';
 export type { FxContext } from './types/FxContext';
@@ -7,7 +6,6 @@ export type { FxDefinition } from './types/FxDefinition';
 export type { FxParam } from './types/FxParam';
 export type { FxSection } from './types/FxSection';
 export type { SerializedAutomaton } from './types/SerializedAutomaton';
-export type { SerializedBezierControlPoint } from './types/SerializedBezierControlPoint';
 export type { SerializedBezierNode } from './types/SerializedBezierNode';
 export type { SerializedChannel } from './types/SerializedChannel';
 export type { SerializedChannelItem } from './types/SerializedChannelItem';
diff --git a/packages/automaton/src/tests/Automaton.test.ts b/packages/automaton/src/tests/Automaton.test.ts
index cef90834..c9810e42 100644
--- a/packages/automaton/src/tests/Automaton.test.ts
+++ b/packages/automaton/src/tests/Automaton.test.ts
@@ -7,8 +7,8 @@ import type { SerializedAutomaton } from '../types/SerializedAutomaton';
 const data: SerializedAutomaton = {
   resolution: 100.0,
   curves: [
-    { nodes: [ { time: 0.0, value: 0.0 }, { time: 0.6, value: 1.0 } ] },
-    { nodes: [ { time: 0.0, value: 2.0 }, { time: 0.6, value: 2.0 } ] }
+    { nodes: [ [ 0.0, 0.0 ], [ 0.6, 1.0 ] ] },
+    { nodes: [ [ 0.0, 2.0 ], [ 0.6, 2.0 ] ] }
   ],
   channels: [
     [ 'channelWithALinearCurve', { items: [ { curve: 0, time: 0.1 } ] } ],
diff --git a/packages/automaton/src/tests/Channel.test.ts b/packages/automaton/src/tests/Channel.test.ts
index 7a2d92b2..b7147e84 100644
--- a/packages/automaton/src/tests/Channel.test.ts
+++ b/packages/automaton/src/tests/Channel.test.ts
@@ -7,8 +7,8 @@ import type { SerializedAutomaton } from '../types/SerializedAutomaton';
 const data: SerializedAutomaton = {
   resolution: 100.0,
   curves: [
-    { nodes: [ { time: 0.0, value: 0.0 }, { time: 0.6, value: 1.0 } ] },
-    { nodes: [ { time: 0.0, value: 2.0 }, { time: 0.6, value: 2.0 } ] }
+    { nodes: [ [ 0.0, 0.0 ], [ 0.6, 1.0 ] ] },
+    { nodes: [ [ 0.0, 2.0 ], [ 0.6, 2.0 ] ] }
   ],
   channels: []
 };
diff --git a/packages/automaton/src/types/BezierControlPoint.ts b/packages/automaton/src/types/BezierControlPoint.ts
deleted file mode 100644
index f5ad9340..00000000
--- a/packages/automaton/src/types/BezierControlPoint.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-/**
- * Represents a bezier control point.
- */
-export interface BezierControlPoint {
-  /**
-   * Time of the control point.
-   */
-  time: number;
-
-  /**
-   * Value of the control point.
-   */
-  value: number;
-}
diff --git a/packages/automaton/src/types/BezierNode.ts b/packages/automaton/src/types/BezierNode.ts
index 5c5109c5..e3b797a2 100644
--- a/packages/automaton/src/types/BezierNode.ts
+++ b/packages/automaton/src/types/BezierNode.ts
@@ -1,5 +1,3 @@
-import type { BezierControlPoint } from './BezierControlPoint';
-
 /**
  * Represents a bezier node.
  */
@@ -15,12 +13,22 @@ export interface BezierNode {
   value: number;
 
   /**
-   * Bezier control point of inlet.
+   * Bezier control point of inlet. Time.
+   */
+  inTime: number;
+
+  /**
+   * Bezier control point of inlet. Value.
+   */
+  inValue: number;
+
+  /**
+   * Bezier control point of outlet. Time.
    */
-  in: BezierControlPoint;
+  outTime: number;
 
   /**
-   * Bezier control point of outlet.
+   * Bezier control point of outlet. Value.
    */
-  out: BezierControlPoint;
+  outValue: number;
 }
diff --git a/packages/automaton/src/types/SerializedBezierNode.ts b/packages/automaton/src/types/SerializedBezierNode.ts
index bf667853..4e1bc07b 100644
--- a/packages/automaton/src/types/SerializedBezierNode.ts
+++ b/packages/automaton/src/types/SerializedBezierNode.ts
@@ -1,31 +1,41 @@
-import type { SerializedBezierControlPoint } from './SerializedBezierControlPoint';
-
 /**
  * Serialized variant of {@link BezierNode}.
  * Some values are optional.
  */
-export interface SerializedBezierNode {
+export type SerializedBezierNode = [
   /**
    * Time of the node.
    * `0.0` by default.
    */
-  time?: number;
+  time?: number,
 
   /**
    * Value of the node.
    * `0.0` by default.
    */
-  value?: number;
+  value?: number,
+
+  /**
+   * Bezier control point of inlet. Time.
+   * `0.0` by default.
+   */
+  inTime?: number,
 
   /**
-   * Bezier control point of inlet.
-   * `{ time: 0.0, value: 0.0 }` by default.
+   * Bezier control point of inlet. Value.
+   * `0.0` by default.
    */
-  in?: SerializedBezierControlPoint;
+  inValue?: number,
 
   /**
-   * Bezier control point of outlet.
-   * `{ time: 0.0, value: 0.0 }` by default.
+   * Bezier control point of outlet. Time.
+   * `0.0` by default.
+   */
+  outTime?: number,
+
+  /**
+   * Bezier control point of outlet. Value.
+   * `0.0` by default.
    */
-  out?: SerializedBezierControlPoint;
-}
+  outValue?: number,
+];
diff --git a/packages/automaton/src/utils/bezierEasing.ts b/packages/automaton/src/utils/bezierEasing.ts
index 2614312a..d6912f4e 100644
--- a/packages/automaton/src/utils/bezierEasing.ts
+++ b/packages/automaton/src/utils/bezierEasing.ts
@@ -117,14 +117,14 @@ export function bezierEasing( node0: BezierNode, node1: BezierNode, time: number
   return rawBezierEasing(
     {
       p0: node0.time,
-      p1: node0.time + ( node0.out.time ),
-      p2: node1.time + ( node1.in.time ),
+      p1: node0.time + node0.outTime,
+      p2: node1.time + node1.inTime,
       p3: node1.time
     },
     {
       p0: node0.value,
-      p1: node0.value + ( node0.out.value ),
-      p2: node1.value + ( node1.in.value ),
+      p1: node0.value + node0.outValue,
+      p2: node1.value + node1.inValue,
       p3: node1.value
     },
     time