fix: omit original mix from titles

internal/app/app.go

@@ -1310,7 +1310,7 @@ func titleFromMetadata(meta map[string]any, fallback string) string {
 	if title, ok := meta["title"].(string); ok {
 		title = strings.TrimSpace(title)
 		version := strings.TrimSpace(jsonutil.StringFromAny(meta["version"]))
-		if version != "" {
+		if version != "" && !isOriginalMix(version) {
 			return title + " (" + version + ")"
 		}
 		if title != "" {
@@ -1320,6 +1320,10 @@ func titleFromMetadata(meta map[string]any, fallback string) string {
 	return fallback
 }
 
+func isOriginalMix(version string) bool {
+	return strings.EqualFold(strings.TrimSpace(version), "Original Mix")
+}
+
 func replaygainGainFromAny(v any) string {
 	s := strings.TrimSpace(jsonutil.StringFromAny(v))
 	if s == "" {

internal/app/app_test.go

@@ -893,6 +893,20 @@ func TestBuildTagMetadataArtistList(t *testing.T) {
 	}
 }
 
+func TestTitleFromMetadataSkipsOriginalMix(t *testing.T) {
+	meta := map[string]any{"title": "Dance Done", "version": "Original Mix"}
+	if got := titleFromMetadata(meta, "42"); got != "Dance Done" {
+		t.Fatalf("titleFromMetadata()=%q", got)
+	}
+}
+
+func TestTitleFromMetadataIncludesNonOriginalMix(t *testing.T) {
+	meta := map[string]any{"title": "Dance Done", "version": "Extended Mix"}
+	if got := titleFromMetadata(meta, "42"); got != "Dance Done (Extended Mix)" {
+		t.Fatalf("titleFromMetadata()=%q", got)
+	}
+}
+
 func TestNormalizeInitialKey(t *testing.T) {
 	tests := map[string]string{
 		"C Major":   "C",