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rename from assets/audio/yong2.mp3
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diff --git a/assets/audio/yong3.mp3 b/public/audio/yong3.mp3
similarity index 100%
rename from assets/audio/yong3.mp3
rename to public/audio/yong3.mp3
diff --git a/assets/audio/yong4.mp3 b/public/audio/yong4.mp3
similarity index 100%
rename from assets/audio/yong4.mp3
rename to public/audio/yong4.mp3
diff --git a/assets/audio/you1.mp3 b/public/audio/you1.mp3
similarity index 100%
rename from assets/audio/you1.mp3
rename to public/audio/you1.mp3
diff --git a/assets/audio/you2.mp3 b/public/audio/you2.mp3
similarity index 100%
rename from assets/audio/you2.mp3
rename to public/audio/you2.mp3
diff --git a/assets/audio/you3.mp3 b/public/audio/you3.mp3
similarity index 100%
rename from assets/audio/you3.mp3
rename to public/audio/you3.mp3
diff --git a/assets/audio/you4.mp3 b/public/audio/you4.mp3
similarity index 100%
rename from assets/audio/you4.mp3
rename to public/audio/you4.mp3
diff --git a/assets/audio/yu1.mp3 b/public/audio/yu1.mp3
similarity index 100%
rename from assets/audio/yu1.mp3
rename to public/audio/yu1.mp3
diff --git a/assets/audio/yu2.mp3 b/public/audio/yu2.mp3
similarity index 100%
rename from assets/audio/yu2.mp3
rename to public/audio/yu2.mp3
diff --git a/assets/audio/yu3.mp3 b/public/audio/yu3.mp3
similarity index 100%
rename from assets/audio/yu3.mp3
rename to public/audio/yu3.mp3
diff --git a/assets/audio/yu4.mp3 b/public/audio/yu4.mp3
similarity index 100%
rename from assets/audio/yu4.mp3
rename to public/audio/yu4.mp3
diff --git a/assets/audio/yuan1.mp3 b/public/audio/yuan1.mp3
similarity index 100%
rename from assets/audio/yuan1.mp3
rename to public/audio/yuan1.mp3
diff --git a/assets/audio/yuan2.mp3 b/public/audio/yuan2.mp3
similarity index 100%
rename from assets/audio/yuan2.mp3
rename to public/audio/yuan2.mp3
diff --git a/assets/audio/yuan3.mp3 b/public/audio/yuan3.mp3
similarity index 100%
rename from assets/audio/yuan3.mp3
rename to public/audio/yuan3.mp3
diff --git a/assets/audio/yuan4.mp3 b/public/audio/yuan4.mp3
similarity index 100%
rename from assets/audio/yuan4.mp3
rename to public/audio/yuan4.mp3
diff --git a/assets/audio/yue1.mp3 b/public/audio/yue1.mp3
similarity index 100%
rename from assets/audio/yue1.mp3
rename to public/audio/yue1.mp3
diff --git a/assets/audio/yue4.mp3 b/public/audio/yue4.mp3
similarity index 100%
rename from assets/audio/yue4.mp3
rename to public/audio/yue4.mp3
diff --git a/assets/audio/yun1.mp3 b/public/audio/yun1.mp3
similarity index 100%
rename from assets/audio/yun1.mp3
rename to public/audio/yun1.mp3
diff --git a/assets/audio/yun2.mp3 b/public/audio/yun2.mp3
similarity index 100%
rename from assets/audio/yun2.mp3
rename to public/audio/yun2.mp3
diff --git a/assets/audio/yun3.mp3 b/public/audio/yun3.mp3
similarity index 100%
rename from assets/audio/yun3.mp3
rename to public/audio/yun3.mp3
diff --git a/assets/audio/yun4.mp3 b/public/audio/yun4.mp3
similarity index 100%
rename from assets/audio/yun4.mp3
rename to public/audio/yun4.mp3
diff --git a/assets/audio/za1.mp3 b/public/audio/za1.mp3
similarity index 100%
rename from assets/audio/za1.mp3
rename to public/audio/za1.mp3
diff --git a/assets/audio/za2.mp3 b/public/audio/za2.mp3
similarity index 100%
rename from assets/audio/za2.mp3
rename to public/audio/za2.mp3
diff --git a/assets/audio/za3.mp3 b/public/audio/za3.mp3
similarity index 100%
rename from assets/audio/za3.mp3
rename to public/audio/za3.mp3
diff --git a/assets/audio/zai1.mp3 b/public/audio/zai1.mp3
similarity index 100%
rename from assets/audio/zai1.mp3
rename to public/audio/zai1.mp3
diff --git a/assets/audio/zai3.mp3 b/public/audio/zai3.mp3
similarity index 100%
rename from assets/audio/zai3.mp3
rename to public/audio/zai3.mp3
diff --git a/assets/audio/zai4.mp3 b/public/audio/zai4.mp3
similarity index 100%
rename from assets/audio/zai4.mp3
rename to public/audio/zai4.mp3
diff --git a/assets/audio/zan1.mp3 b/public/audio/zan1.mp3
similarity index 100%
rename from assets/audio/zan1.mp3
rename to public/audio/zan1.mp3
diff --git a/assets/audio/zan2.mp3 b/public/audio/zan2.mp3
similarity index 100%
rename from assets/audio/zan2.mp3
rename to public/audio/zan2.mp3
diff --git a/assets/audio/zan4.mp3 b/public/audio/zan4.mp3
similarity index 100%
rename from assets/audio/zan4.mp3
rename to public/audio/zan4.mp3
diff --git a/assets/audio/zang1.mp3 b/public/audio/zang1.mp3
similarity index 100%
rename from assets/audio/zang1.mp3
rename to public/audio/zang1.mp3
diff --git a/assets/audio/zang4.mp3 b/public/audio/zang4.mp3
similarity index 100%
rename from assets/audio/zang4.mp3
rename to public/audio/zang4.mp3
diff --git a/assets/audio/zao1.mp3 b/public/audio/zao1.mp3
similarity index 100%
rename from assets/audio/zao1.mp3
rename to public/audio/zao1.mp3
diff --git a/assets/audio/zao2.mp3 b/public/audio/zao2.mp3
similarity index 100%
rename from assets/audio/zao2.mp3
rename to public/audio/zao2.mp3
diff --git a/assets/audio/zao3.mp3 b/public/audio/zao3.mp3
similarity index 100%
rename from assets/audio/zao3.mp3
rename to public/audio/zao3.mp3
diff --git a/assets/audio/zao4.mp3 b/public/audio/zao4.mp3
similarity index 100%
rename from assets/audio/zao4.mp3
rename to public/audio/zao4.mp3
diff --git a/assets/audio/ze2.mp3 b/public/audio/ze2.mp3
similarity index 100%
rename from assets/audio/ze2.mp3
rename to public/audio/ze2.mp3
diff --git a/assets/audio/ze4.mp3 b/public/audio/ze4.mp3
similarity index 100%
rename from assets/audio/ze4.mp3
rename to public/audio/ze4.mp3
diff --git a/assets/audio/zei2.mp3 b/public/audio/zei2.mp3
similarity index 100%
rename from assets/audio/zei2.mp3
rename to public/audio/zei2.mp3
diff --git a/assets/audio/zen3.mp3 b/public/audio/zen3.mp3
similarity index 100%
rename from assets/audio/zen3.mp3
rename to public/audio/zen3.mp3
diff --git a/assets/audio/zeng1.mp3 b/public/audio/zeng1.mp3
similarity index 100%
rename from assets/audio/zeng1.mp3
rename to public/audio/zeng1.mp3
diff --git a/assets/audio/zeng4.mp3 b/public/audio/zeng4.mp3
similarity index 100%
rename from assets/audio/zeng4.mp3
rename to public/audio/zeng4.mp3
diff --git a/assets/audio/zha1.mp3 b/public/audio/zha1.mp3
similarity index 100%
rename from assets/audio/zha1.mp3
rename to public/audio/zha1.mp3
diff --git a/assets/audio/zha2.mp3 b/public/audio/zha2.mp3
similarity index 100%
rename from assets/audio/zha2.mp3
rename to public/audio/zha2.mp3
diff --git a/assets/audio/zha3.mp3 b/public/audio/zha3.mp3
similarity index 100%
rename from assets/audio/zha3.mp3
rename to public/audio/zha3.mp3
diff --git a/assets/audio/zha4.mp3 b/public/audio/zha4.mp3
similarity index 100%
rename from assets/audio/zha4.mp3
rename to public/audio/zha4.mp3
diff --git a/assets/audio/zhai1.mp3 b/public/audio/zhai1.mp3
similarity index 100%
rename from assets/audio/zhai1.mp3
rename to public/audio/zhai1.mp3
diff --git a/assets/audio/zhai2.mp3 b/public/audio/zhai2.mp3
similarity index 100%
rename from assets/audio/zhai2.mp3
rename to public/audio/zhai2.mp3
diff --git a/assets/audio/zhai3.mp3 b/public/audio/zhai3.mp3
similarity index 100%
rename from assets/audio/zhai3.mp3
rename to public/audio/zhai3.mp3
diff --git a/assets/audio/zhai4.mp3 b/public/audio/zhai4.mp3
similarity index 100%
rename from assets/audio/zhai4.mp3
rename to public/audio/zhai4.mp3
diff --git a/assets/audio/zhan1.mp3 b/public/audio/zhan1.mp3
similarity index 100%
rename from assets/audio/zhan1.mp3
rename to public/audio/zhan1.mp3
diff --git a/assets/audio/zhan3.mp3 b/public/audio/zhan3.mp3
similarity index 100%
rename from assets/audio/zhan3.mp3
rename to public/audio/zhan3.mp3
diff --git a/assets/audio/zhan4.mp3 b/public/audio/zhan4.mp3
similarity index 100%
rename from assets/audio/zhan4.mp3
rename to public/audio/zhan4.mp3
diff --git a/assets/audio/zhang1.mp3 b/public/audio/zhang1.mp3
similarity index 100%
rename from assets/audio/zhang1.mp3
rename to public/audio/zhang1.mp3
diff --git a/assets/audio/zhang3.mp3 b/public/audio/zhang3.mp3
similarity index 100%
rename from assets/audio/zhang3.mp3
rename to public/audio/zhang3.mp3
diff --git a/assets/audio/zhang4.mp3 b/public/audio/zhang4.mp3
similarity index 100%
rename from assets/audio/zhang4.mp3
rename to public/audio/zhang4.mp3
diff --git a/assets/audio/zhao1.mp3 b/public/audio/zhao1.mp3
similarity index 100%
rename from assets/audio/zhao1.mp3
rename to public/audio/zhao1.mp3
diff --git a/assets/audio/zhao2.mp3 b/public/audio/zhao2.mp3
similarity index 100%
rename from assets/audio/zhao2.mp3
rename to public/audio/zhao2.mp3
diff --git a/assets/audio/zhao3.mp3 b/public/audio/zhao3.mp3
similarity index 100%
rename from assets/audio/zhao3.mp3
rename to public/audio/zhao3.mp3
diff --git a/assets/audio/zhao4.mp3 b/public/audio/zhao4.mp3
similarity index 100%
rename from assets/audio/zhao4.mp3
rename to public/audio/zhao4.mp3
diff --git a/assets/audio/zhe1.mp3 b/public/audio/zhe1.mp3
similarity index 100%
rename from assets/audio/zhe1.mp3
rename to public/audio/zhe1.mp3
diff --git a/assets/audio/zhe2.mp3 b/public/audio/zhe2.mp3
similarity index 100%
rename from assets/audio/zhe2.mp3
rename to public/audio/zhe2.mp3
diff --git a/assets/audio/zhe3.mp3 b/public/audio/zhe3.mp3
similarity index 100%
rename from assets/audio/zhe3.mp3
rename to public/audio/zhe3.mp3
diff --git a/assets/audio/zhe4.mp3 b/public/audio/zhe4.mp3
similarity index 100%
rename from assets/audio/zhe4.mp3
rename to public/audio/zhe4.mp3
diff --git a/assets/audio/zhen1.mp3 b/public/audio/zhen1.mp3
similarity index 100%
rename from assets/audio/zhen1.mp3
rename to public/audio/zhen1.mp3
diff --git a/assets/audio/zhen2.mp3 b/public/audio/zhen2.mp3
similarity index 100%
rename from assets/audio/zhen2.mp3
rename to public/audio/zhen2.mp3
diff --git a/assets/audio/zhen3.mp3 b/public/audio/zhen3.mp3
similarity index 100%
rename from assets/audio/zhen3.mp3
rename to public/audio/zhen3.mp3
diff --git a/assets/audio/zhen4.mp3 b/public/audio/zhen4.mp3
similarity index 100%
rename from assets/audio/zhen4.mp3
rename to public/audio/zhen4.mp3
diff --git a/assets/audio/zheng1.mp3 b/public/audio/zheng1.mp3
similarity index 100%
rename from assets/audio/zheng1.mp3
rename to public/audio/zheng1.mp3
diff --git a/assets/audio/zheng3.mp3 b/public/audio/zheng3.mp3
similarity index 100%
rename from assets/audio/zheng3.mp3
rename to public/audio/zheng3.mp3
diff --git a/assets/audio/zheng4.mp3 b/public/audio/zheng4.mp3
similarity index 100%
rename from assets/audio/zheng4.mp3
rename to public/audio/zheng4.mp3
diff --git a/assets/audio/zhi1.mp3 b/public/audio/zhi1.mp3
similarity index 100%
rename from assets/audio/zhi1.mp3
rename to public/audio/zhi1.mp3
diff --git a/assets/audio/zhi2.mp3 b/public/audio/zhi2.mp3
similarity index 100%
rename from assets/audio/zhi2.mp3
rename to public/audio/zhi2.mp3
diff --git a/assets/audio/zhi3.mp3 b/public/audio/zhi3.mp3
similarity index 100%
rename from assets/audio/zhi3.mp3
rename to public/audio/zhi3.mp3
diff --git a/assets/audio/zhi4.mp3 b/public/audio/zhi4.mp3
similarity index 100%
rename from assets/audio/zhi4.mp3
rename to public/audio/zhi4.mp3
diff --git a/assets/audio/zhong1.mp3 b/public/audio/zhong1.mp3
similarity index 100%
rename from assets/audio/zhong1.mp3
rename to public/audio/zhong1.mp3
diff --git a/assets/audio/zhong3.mp3 b/public/audio/zhong3.mp3
similarity index 100%
rename from assets/audio/zhong3.mp3
rename to public/audio/zhong3.mp3
diff --git a/assets/audio/zhong4.mp3 b/public/audio/zhong4.mp3
similarity index 100%
rename from assets/audio/zhong4.mp3
rename to public/audio/zhong4.mp3
diff --git a/assets/audio/zhou1.mp3 b/public/audio/zhou1.mp3
similarity index 100%
rename from assets/audio/zhou1.mp3
rename to public/audio/zhou1.mp3
diff --git a/assets/audio/zhou2.mp3 b/public/audio/zhou2.mp3
similarity index 100%
rename from assets/audio/zhou2.mp3
rename to public/audio/zhou2.mp3
diff --git a/assets/audio/zhou3.mp3 b/public/audio/zhou3.mp3
similarity index 100%
rename from assets/audio/zhou3.mp3
rename to public/audio/zhou3.mp3
diff --git a/assets/audio/zhou4.mp3 b/public/audio/zhou4.mp3
similarity index 100%
rename from assets/audio/zhou4.mp3
rename to public/audio/zhou4.mp3
diff --git a/assets/audio/zhu1.mp3 b/public/audio/zhu1.mp3
similarity index 100%
rename from assets/audio/zhu1.mp3
rename to public/audio/zhu1.mp3
diff --git a/assets/audio/zhu2.mp3 b/public/audio/zhu2.mp3
similarity index 100%
rename from assets/audio/zhu2.mp3
rename to public/audio/zhu2.mp3
diff --git a/assets/audio/zhu3.mp3 b/public/audio/zhu3.mp3
similarity index 100%
rename from assets/audio/zhu3.mp3
rename to public/audio/zhu3.mp3
diff --git a/assets/audio/zhu4.mp3 b/public/audio/zhu4.mp3
similarity index 100%
rename from assets/audio/zhu4.mp3
rename to public/audio/zhu4.mp3
diff --git a/assets/audio/zhua1.mp3 b/public/audio/zhua1.mp3
similarity index 100%
rename from assets/audio/zhua1.mp3
rename to public/audio/zhua1.mp3
diff --git a/assets/audio/zhua3.mp3 b/public/audio/zhua3.mp3
similarity index 100%
rename from assets/audio/zhua3.mp3
rename to public/audio/zhua3.mp3
diff --git a/assets/audio/zhuan1.mp3 b/public/audio/zhuan1.mp3
similarity index 100%
rename from assets/audio/zhuan1.mp3
rename to public/audio/zhuan1.mp3
diff --git a/assets/audio/zhuan3.mp3 b/public/audio/zhuan3.mp3
similarity index 100%
rename from assets/audio/zhuan3.mp3
rename to public/audio/zhuan3.mp3
diff --git a/assets/audio/zhuan4.mp3 b/public/audio/zhuan4.mp3
similarity index 100%
rename from assets/audio/zhuan4.mp3
rename to public/audio/zhuan4.mp3
diff --git a/assets/audio/zhuang1.mp3 b/public/audio/zhuang1.mp3
similarity index 100%
rename from assets/audio/zhuang1.mp3
rename to public/audio/zhuang1.mp3
diff --git a/assets/audio/zhuang4.mp3 b/public/audio/zhuang4.mp3
similarity index 100%
rename from assets/audio/zhuang4.mp3
rename to public/audio/zhuang4.mp3
diff --git a/assets/audio/zhui1.mp3 b/public/audio/zhui1.mp3
similarity index 100%
rename from assets/audio/zhui1.mp3
rename to public/audio/zhui1.mp3
diff --git a/assets/audio/zhui4.mp3 b/public/audio/zhui4.mp3
similarity index 100%
rename from assets/audio/zhui4.mp3
rename to public/audio/zhui4.mp3
diff --git a/assets/audio/zhun1.mp3 b/public/audio/zhun1.mp3
similarity index 100%
rename from assets/audio/zhun1.mp3
rename to public/audio/zhun1.mp3
diff --git a/assets/audio/zhun3.mp3 b/public/audio/zhun3.mp3
similarity index 100%
rename from assets/audio/zhun3.mp3
rename to public/audio/zhun3.mp3
diff --git a/assets/audio/zhuo1.mp3 b/public/audio/zhuo1.mp3
similarity index 100%
rename from assets/audio/zhuo1.mp3
rename to public/audio/zhuo1.mp3
diff --git a/assets/audio/zhuo2.mp3 b/public/audio/zhuo2.mp3
similarity index 100%
rename from assets/audio/zhuo2.mp3
rename to public/audio/zhuo2.mp3
diff --git a/assets/audio/zi1.mp3 b/public/audio/zi1.mp3
similarity index 100%
rename from assets/audio/zi1.mp3
rename to public/audio/zi1.mp3
diff --git a/assets/audio/zi3.mp3 b/public/audio/zi3.mp3
similarity index 100%
rename from assets/audio/zi3.mp3
rename to public/audio/zi3.mp3
diff --git a/assets/audio/zi4.mp3 b/public/audio/zi4.mp3
similarity index 100%
rename from assets/audio/zi4.mp3
rename to public/audio/zi4.mp3
diff --git a/assets/audio/zong1.mp3 b/public/audio/zong1.mp3
similarity index 100%
rename from assets/audio/zong1.mp3
rename to public/audio/zong1.mp3
diff --git a/assets/audio/zong3.mp3 b/public/audio/zong3.mp3
similarity index 100%
rename from assets/audio/zong3.mp3
rename to public/audio/zong3.mp3
diff --git a/assets/audio/zong4.mp3 b/public/audio/zong4.mp3
similarity index 100%
rename from assets/audio/zong4.mp3
rename to public/audio/zong4.mp3
diff --git a/assets/audio/zou3.mp3 b/public/audio/zou3.mp3
similarity index 100%
rename from assets/audio/zou3.mp3
rename to public/audio/zou3.mp3
diff --git a/assets/audio/zou4.mp3 b/public/audio/zou4.mp3
similarity index 100%
rename from assets/audio/zou4.mp3
rename to public/audio/zou4.mp3
diff --git a/assets/audio/zu1.mp3 b/public/audio/zu1.mp3
similarity index 100%
rename from assets/audio/zu1.mp3
rename to public/audio/zu1.mp3
diff --git a/assets/audio/zu2.mp3 b/public/audio/zu2.mp3
similarity index 100%
rename from assets/audio/zu2.mp3
rename to public/audio/zu2.mp3
diff --git a/assets/audio/zu3.mp3 b/public/audio/zu3.mp3
similarity index 100%
rename from assets/audio/zu3.mp3
rename to public/audio/zu3.mp3
diff --git a/assets/audio/zu4.mp3 b/public/audio/zu4.mp3
similarity index 100%
rename from assets/audio/zu4.mp3
rename to public/audio/zu4.mp3
diff --git a/assets/audio/zuan1.mp3 b/public/audio/zuan1.mp3
similarity index 100%
rename from assets/audio/zuan1.mp3
rename to public/audio/zuan1.mp3
diff --git a/assets/audio/zuan3.mp3 b/public/audio/zuan3.mp3
similarity index 100%
rename from assets/audio/zuan3.mp3
rename to public/audio/zuan3.mp3
diff --git a/assets/audio/zuan4.mp3 b/public/audio/zuan4.mp3
similarity index 100%
rename from assets/audio/zuan4.mp3
rename to public/audio/zuan4.mp3
diff --git a/assets/audio/zui3.mp3 b/public/audio/zui3.mp3
similarity index 100%
rename from assets/audio/zui3.mp3
rename to public/audio/zui3.mp3
diff --git a/assets/audio/zui4.mp3 b/public/audio/zui4.mp3
similarity index 100%
rename from assets/audio/zui4.mp3
rename to public/audio/zui4.mp3
diff --git a/assets/audio/zun1.mp3 b/public/audio/zun1.mp3
similarity index 100%
rename from assets/audio/zun1.mp3
rename to public/audio/zun1.mp3
diff --git a/assets/audio/zun3.mp3 b/public/audio/zun3.mp3
similarity index 100%
rename from assets/audio/zun3.mp3
rename to public/audio/zun3.mp3
diff --git a/assets/audio/zuo1.mp3 b/public/audio/zuo1.mp3
similarity index 100%
rename from assets/audio/zuo1.mp3
rename to public/audio/zuo1.mp3
diff --git a/assets/audio/zuo2.mp3 b/public/audio/zuo2.mp3
similarity index 100%
rename from assets/audio/zuo2.mp3
rename to public/audio/zuo2.mp3
diff --git a/assets/audio/zuo3.mp3 b/public/audio/zuo3.mp3
similarity index 100%
rename from assets/audio/zuo3.mp3
rename to public/audio/zuo3.mp3
diff --git a/assets/audio/zuo4.mp3 b/public/audio/zuo4.mp3
similarity index 100%
rename from assets/audio/zuo4.mp3
rename to public/audio/zuo4.mp3
diff --git a/src/App.tsx b/src/App.tsx
index 4172c94..df75f21 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -8,6 +8,7 @@ import { useStateContext } from './store';
 import { Params } from './params';
 import { ActionType, ToggleType } from './reducer';
 import { ButtonSet } from './buttons';
+import { getAudio } from './utils';
 
 function App() {
 
@@ -19,8 +20,8 @@ function App() {
 
   useEffect( () => {
     if (status===Status.params) {
-      console.log('effect for params')
-      dispatch({ type: ActionType.refresh })
+     console.log('effect for params')
+     dispatch({ type: ActionType.refresh })
     }
     if (status===Status.prepare) {
       console.log('effect for preparing')
@@ -30,27 +31,25 @@ function App() {
       console.log('effect for playing')
       playPlayList()
     }
+// eslint-disable-next-line react-hooks/exhaustive-deps
     }, [status])
 
   useEffect( () => {
-    console.log('effect for playList')
-    setStatus(Status.playing)
-  } , [playlist] )
+    console.log(`effect for playList ${playlist.length}`)
+    if (playlist.length > 0) setStatus(Status.playing)
+  } , [playlist[0]] )
 
 const preparePlayList = (tones: Tone[]) => {
   console.log('tones for playing')
   tones!.forEach(element => console.log(element))
   if ( tones!.length == 0 ) return
-  let audios:HTMLAudioElement[] = []
-  tones!.forEach(element => {
-     audios = [...audios, new Audio(`/assets/audio/${element.tone}.mp3`) ]
-  });
+  const audios = tones!.map(element => getAudio(element.tone) )
   console.debug(audios)
   if ( audios.length == 0 ) return
   for(let x=0; x<audios.length-1;x++)
   {
     audios[x].onended = () =>  setTimeout( () => {
-      let pno = x+2
+      const pno = x+2
       setPlaingNo(pno)
       audios[x+1].play()
     }, 1000*state.sylPause! ) ;
@@ -67,8 +66,7 @@ const playPlayList = () => {
 }
 
 const playTone = (index: string) => {
-  let audio:HTMLAudioElement = new Audio(`/assets/audio/${index}.mp3`)
-  audio.play()
+  getAudio(index).play()
 }
 
 const renderPlayList = () => {
@@ -133,7 +131,6 @@ const renderPlayList = () => {
           <>
             <div>{renderPlayList()}</div>
             <br/>
-            // here add effect to new randomTones
             <Button variant="success" onClick={()=>  setStatus(Status.params)}>{strings.toBegin}</Button>
           </>
         }
diff --git a/src/Utils.ts b/src/Utils.ts
index 06114a5..115fe68 100644
--- a/src/Utils.ts
+++ b/src/Utils.ts
@@ -13,7 +13,7 @@ export const toggle = ( arr: SylPart[], part: SylPart ):SylPart[] => {
 export const genrateRandomNumber = (min: number, max: number):number => {
   min = Math.ceil(min)
   max = Math.floor(max)
-  let rnd =  Math.floor(Math.random() * (max - min + 1)) + min
+  const rnd =  Math.floor(Math.random() * (max - min + 1)) + min
   return rnd
 }
 
@@ -23,16 +23,19 @@ export const getRandomArray = <T>(fromArray:T[], count:number):T[] => {
     return _tone
   }
   for( let x=0; x<count; x++) {
-    let randomN = genrateRandomNumber(0,fromArray.length-1)
+    const randomN = genrateRandomNumber(0,fromArray.length-1)
     _tone = [..._tone, fromArray[randomN]]
   }
   return _tone
 }
 
 export const GetSyllablesByInitAndFin = (initiales:SylPart[], finales: SylPart[]):Syllable[] => {
-  let inits = initiales.map( (i) => i.index)
-  let fins = finales.map( (i) =>i.index )
+  const inits = initiales.map( (i) => i.index)
+  const fins = finales.map( (i) =>i.index )
   return syllables.filter( syl => inits.includes(syl.initiale) && fins.includes(syl.finale) )
   }
 
-export const Outlined = (color: BtnColor):string => `outline-${color}`  
\ No newline at end of file
+export const Outlined = (color: BtnColor):string => `outline-${color}`
+export const getAudioPath = (index: string):string => `/audio/${index}.mp3`
+
+export const getAudio = (index: string):HTMLAudioElement => new Audio(getAudioPath(index))
\ No newline at end of file
diff --git a/src/assets/react.svg b/src/assets/react.svg
deleted file mode 100644
index 6c87de9..0000000
--- a/src/assets/react.svg
+++ /dev/null
@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>
\ No newline at end of file
diff --git a/src/main.tsx b/src/main.tsx
index e7e020c..3d560bc 100644
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -3,7 +3,7 @@ import * as ReactDOM from 'react-dom/client'
 import App from './App'
 import './index.css'
 import 'bootstrap/dist/css/bootstrap.min.css';
-import { StateProvider } from './store.js';
+import { StateProvider } from './stateprovider';
 
 ReactDOM.createRoot(document.getElementById('root')!).render(
   <React.StrictMode>
diff --git a/src/reducer.ts b/src/reducer.ts
index 89d451e..e38e705 100644
--- a/src/reducer.ts
+++ b/src/reducer.ts
@@ -10,7 +10,7 @@ export enum ActionType {
 export enum ToggleType { init, fin }
 export type TogglePayload = { type: ToggleType, part: SylPart }
 
-export type Action = { type: ActionType, payload?: any };
+export type Action = { type: ActionType, payload?: number | ToggleType | TogglePayload };
 
 interface IFounds { foundSyllables:Syllable[], foundTones: Tone[], randomTones: Tone[] }
 
@@ -32,15 +32,15 @@ interface IFinResult {
 
 const proceedFounds = ( initiales: SylPart[], finales:SylPart[], count: number):IFounds=>
 {
-  let foundSyllables:Syllable[] = GetSyllablesByInitAndFin( initiales, finales )
-  let foundTones = tones.filter( t => foundSyllables.some( syl => syl.tones.some( st => st===t.tone) ) )
-  let randomTones = getRandomArray(foundTones, count)
+  const foundSyllables:Syllable[] = GetSyllablesByInitAndFin( initiales, finales )
+  const foundTones = tones.filter( t => foundSyllables.some( syl => syl.tones.some( st => st===t.tone) ) )
+  const randomTones = getRandomArray(foundTones, count)
   return { foundSyllables, foundTones, randomTones }
 }
 
 const ProceedAllInitials = (state: IState):IInitResult =>
 {
-  let toggled = state.allInitiales ? [] as SylPart[] : initials
+  const toggled = state.allInitiales ? [] as SylPart[] : initials
   return {
     allInitiales: !state.allInitiales,
     initiales: toggled,
@@ -50,7 +50,7 @@ const ProceedAllInitials = (state: IState):IInitResult =>
 
 const ProceedAllFinales = (state: IState):IFinResult =>
 {
-  let toggled = state.allfinales ? [] as SylPart[] : finales
+  const toggled = state.allfinales ? [] as SylPart[] : finales
   return {
     allfinales: !state.allfinales,
     finales: toggled,
@@ -60,7 +60,7 @@ const ProceedAllFinales = (state: IState):IFinResult =>
 
 const ProceedInitiale = (state: IState, index: SylPart):IInitResult =>
 {
-  let toggled = toggle(state.initiales,index)
+  const toggled = toggle(state.initiales,index)
   return {
     initiales: toggled,
     ...proceedFounds(toggled, state.finales, state.sylCount)
@@ -69,7 +69,7 @@ const ProceedInitiale = (state: IState, index: SylPart):IInitResult =>
 
 const ProceedFinale = (state: IState, index: SylPart):IFinResult =>
 {
-  let toggled = toggle(state.finales,index)
+  const toggled = toggle(state.finales,index)
   return {
     finales: toggled,
     ...proceedFounds(state.initiales, toggled, state.sylCount)
diff --git a/src/stateprovider.tsx b/src/stateprovider.tsx
new file mode 100644
index 0000000..33d2d61
--- /dev/null
+++ b/src/stateprovider.tsx
@@ -0,0 +1,8 @@
+import { ReactElement, useReducer } from "react";
+import { reducer } from "./reducer";
+import { AppContext, defaultState, IState } from "./store";
+
+export const StateProvider = ({ children }: { children: ReactElement }) => {
+    const [state, dispatch] = useReducer(reducer, defaultState as IState);
+    return <AppContext.Provider value={{ state, dispatch }} children={children} />
+}
\ No newline at end of file
diff --git a/src/store.tsx b/src/store.ts
similarity index 78%
rename from src/store.tsx
rename to src/store.ts
index f2d1aa3..c45a408 100644
--- a/src/store.tsx
+++ b/src/store.ts
@@ -1,5 +1,5 @@
-import { Context, createContext, Dispatch, ReactElement, useContext, useReducer } from "react";
-import { reducer, Action, ToggleType } from "./reducer"
+import { Context, createContext, Dispatch, useContext } from "react";
+import { Action, ToggleType } from "./reducer"
 import { Syllable, SylPart, Tone } from "./types";
 import { isEnabled } from "./utils";
 
@@ -23,7 +23,7 @@ export interface IStore {
     dispatch: Dispatch<Action>
 }
 
-export const defaultState:Object = {
+export const defaultState:object = {
     sylCount: 10,
     sylPause: 3,
      allfinales: false,
@@ -49,8 +49,3 @@ export const defaultState:Object = {
 export const AppContext:Context<IStore> = createContext<IStore>({ state: defaultState as IState, dispatch: () => null })
 
 export const useStateContext = () => useContext(AppContext);
-
-export const StateProvider = ({ children }: { children: ReactElement }) => {
-    const [state, dispatch] = useReducer(reducer, defaultState as IState);
-    return <AppContext.Provider value={{ state, dispatch }} children={children} />
-}
\ No newline at end of file