diff --git a/src/components/Sing/SingEditor.vue b/src/components/Sing/SingEditor.vue
index 27da8b6c09..a88a2c1ad7 100644
--- a/src/components/Sing/SingEditor.vue
+++ b/src/components/Sing/SingEditor.vue
@@ -89,6 +89,14 @@ onetimeWatch(
           notes: [],
         },
       });
+
+      // CI上のe2eテストのNemoエンジンには歌手がいないためエラーになるのでワークアラウンド
+      // FIXME: 歌手をいると見せかけるmock APIを作り、ここのtry catchを削除する
+      try {
+        await store.dispatch("SET_SINGER", {});
+      } catch (e) {
+        window.backend.logError(e);
+      }
     }
 
     await store.dispatch("SET_VOLUME", { volume: 0.6 });
@@ -101,8 +109,6 @@ onetimeWatch(
     });
     isCompletedInitialStartup.value = true;
 
-    await store.dispatch("SET_SINGER", {});
-
     return "unwatch";
   },
   {
diff --git a/src/components/Sing/ToolBar.vue b/src/components/Sing/ToolBar.vue
index 4838290011..a8a8172d64 100644
--- a/src/components/Sing/ToolBar.vue
+++ b/src/components/Sing/ToolBar.vue
@@ -134,7 +134,6 @@
 <script setup lang="ts">
 import { computed, watch, ref, onMounted, onUnmounted } from "vue";
 import { useStore } from "@/store";
-import { isProduction } from "@/type/preload";
 
 import {
   getSnapTypes,
@@ -214,7 +213,7 @@ watch(
   () => {
     bpmInputBuffer.value = tempos.value[0].bpm;
   },
-  { deep: true }
+  { deep: true, immediate: true }
 );
 
 watch(
@@ -223,16 +222,24 @@ watch(
     beatsInputBuffer.value = timeSignatures.value[0].beats;
     beatTypeInputBuffer.value = timeSignatures.value[0].beatType;
   },
-  { deep: true }
+  { deep: true, immediate: true }
 );
 
-watch(keyRangeAdjustment, () => {
-  keyRangeAdjustmentInputBuffer.value = keyRangeAdjustment.value;
-});
+watch(
+  keyRangeAdjustment,
+  () => {
+    keyRangeAdjustmentInputBuffer.value = keyRangeAdjustment.value;
+  },
+  { immediate: true }
+);
 
-watch(volumeRangeAdjustment, () => {
-  volumeRangeAdjustmentInputBuffer.value = volumeRangeAdjustment.value;
-});
+watch(
+  volumeRangeAdjustment,
+  () => {
+    volumeRangeAdjustmentInputBuffer.value = volumeRangeAdjustment.value;
+  },
+  { immediate: true }
+);
 
 const setBpmInputBuffer = (bpmStr: string | number | null) => {
   const bpmValue = Number(bpmStr);
diff --git a/src/store/project.ts b/src/store/project.ts
index 096c151b2a..923c6e01c6 100755
--- a/src/store/project.ts
+++ b/src/store/project.ts
@@ -114,6 +114,9 @@ const applySongProjectToStore = async (
   await dispatch("SET_KEY_RANGE_ADJUSTMENT", {
     keyRangeAdjustment: tracks[0].keyRangeAdjustment,
   });
+  await dispatch("SET_VOLUME_RANGE_ADJUSTMENT", {
+    volumeRangeAdjustment: tracks[0].volumeRangeAdjustment,
+  });
   await dispatch("SET_SCORE", {
     score: {
       tpqn,