fix structure

src/screens/Library/MusicDetails.web.js

@@ -444,7 +444,7 @@ const MusicDetails = ({ route }) => {
       lower.includes("pre chorus") ||
       lower.includes("pre-refrain")
     )
-      type = "pre_chorus";
+      type = "pre_refrain_instrumental";
     else if (lower.includes("pont") || lower.includes("bridge")) type = "pont";
     else if (lower.includes("intro")) {
       if (lower.includes("long")) type = "long_intro";
@@ -464,12 +464,6 @@ const MusicDetails = ({ route }) => {
     }
     const prompt = getPromptLabelForStructure(normalized);
     if (prompt) return prompt;
-    if (normalized === "refrain")
-      return index > 1 ? `Refrain ${index}` : "Refrain";
-    if (normalized === "couplet")
-      return index > 1 ? `Couplet ${index}` : "Couplet";
-    if (type === "pont") return index > 1 ? `Pont ${index}` : "Pont";
-    if (type === "intro") return index > 1 ? `Intro ${index}` : "Intro";
     return index > 1 ? `Section ${index}` : "Section";
   };