diff --git a/src/components/Sing/SequencerPitch.vue b/src/components/Sing/SequencerPitch.vue
index 3d350a5f5b..269a4a2822 100644
--- a/src/components/Sing/SequencerPitch.vue
+++ b/src/components/Sing/SequencerPitch.vue
@@ -47,7 +47,7 @@ const props = defineProps<{
     | { type: "erase"; startFrame: number; frameLength: number };
 }>();
 
-const { warn } = createLogger("SequencerPitch");
+const { warn, error } = createLogger("SequencerPitch");
 const store = useStore();
 const singingGuides = computed(() => [...store.state.singingGuides.values()]);
 const pitchEditData = computed(() => {
@@ -425,6 +425,13 @@ onMountedOrActivated(() => {
   });
   stage = new PIXI.Container();
 
+  // webGLVersionをチェックする
+  // 2未満の場合、ピッチの表示ができないのでエラーとしてロギングする
+  const webGLVersion = renderer.context.webGLVersion;
+  if (webGLVersion < 2) {
+    error(`webGLVersion is less than 2. webGLVersion: ${webGLVersion}`);
+  }
+
   const callback = () => {
     if (renderInNextFrame) {
       render();