add barebones defaultPatch

src/components/PatchEditorComponent.js

@@ -1,7 +1,23 @@
 import React, { useState, useEffect } from "react";
 
 function PatchEditorComponent() {
-    const [patch, updatePatch] = useState(null);
+    const defaultPatch = {
+        name: "",
+        arpeggio: { length: 8, pattern: [0, 0, 0, 0, 0, 0, 0, 0] },
+        voiceMode: 0,
+        scaleKey: 0, // C
+        scaleType: 0, // Equal Temperment
+        delayFX: { sync: false, timeBase: 5, delayTime: 0, depth: 0, type: 0 },
+        modFX: { lfoSpeed: 0, depth: 0, type: 0 },
+        eq: { hiFreq: 0, hiGain: 0, lowFreq: 0, lowGain: 0 },
+        arpeggio2: {},
+        octave: 0, //this is a 7 bit number so -1 is 127 and -3 is 125
+        synthParameter1: {}, // only use this one in single voice mode
+        synthParameter2: {}, // use this and the previous in multi voice mode
+        synthParameter3: {}, // this is for vocoder mode
+    };
+
+    const [patch, updatePatch] = useState(defaultPatch);
 
     useEffect(
         {