diff --git a/convert.go b/convert.go
new file mode 100644
index 0000000..55c0e31
--- /dev/null
+++ b/convert.go
@@ -0,0 +1,25 @@
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func lrcToTxt(sourceFile, targetFile string) {
+	sourceLyrics, err := parseLyrics(sourceFile)
+	if err != nil {
+		fmt.Println("Error parsing source lyrics file:", err)
+		return
+	}
+
+	file, err := os.Create(targetFile)
+	if err != nil {
+		fmt.Println("Error creating target file:", err)
+		return
+	}
+	defer file.Close()
+
+	for _, content := range sourceLyrics.Content {
+		fmt.Fprintln(file, content)
+	}
+}
diff --git a/util.go b/lrc.go
similarity index 84%
rename from util.go
rename to lrc.go
index 9e0efc4..072e968 100644
--- a/util.go
+++ b/lrc.go
@@ -162,16 +162,14 @@ func syncLyrics(args []string) {
 		return
 	}
 
-	// Sync timeline
-	if len(sourceLyrics.Timeline) != len(targetLyrics.Timeline) {
-		fmt.Println("Warning: Timeline length mismatch")
-		return
-	}
 	minLength := len(sourceLyrics.Timeline)
 	if len(targetLyrics.Timeline) < minLength {
 		minLength = len(targetLyrics.Timeline)
+		fmt.Printf("Warning: Timeline length mismatch. Source: %d lines, Target: %d lines. Will sync the first %d lines.\n",
+			len(sourceLyrics.Timeline), len(targetLyrics.Timeline), minLength)
 	}
 
+	// Sync the timeline
 	for i := 0; i < minLength; i++ {
 		targetLyrics.Timeline[i] = sourceLyrics.Timeline[i]
 	}
@@ -185,23 +183,6 @@ func syncLyrics(args []string) {
 	}
 }
 
-// func printLyricsInfo(lyrics Lyrics) {
-// 	fmt.Println("Metadata:")
-// 	for key, value := range lyrics.Metadata {
-// 		fmt.Printf("%s: %s\n", key, value)
-// 	}
-
-// 	fmt.Println("\nTimeline:")
-// 	for _, time := range lyrics.Timeline {
-// 		fmt.Println(time)
-// 	}
-
-// 	fmt.Println("\nLyrics Content:")
-// 	for _, content := range lyrics.Content {
-// 		fmt.Println(content)
-// 	}
-// }
-
 func convertLyrics(args []string) {
 	if len(args) < 2 {
 		fmt.Println(CONVERT_USAGE)
@@ -244,25 +225,6 @@ func fmtLyrics(args []string) {
 	}
 }
 
-func lrcToTxt(sourceFile, targetFile string) {
-	sourceLyrics, err := parseLyrics(sourceFile)
-	if err != nil {
-		fmt.Println("Error parsing source lyrics file:", err)
-		return
-	}
-
-	file, err := os.Create(targetFile)
-	if err != nil {
-		fmt.Println("Error creating target file:", err)
-		return
-	}
-	defer file.Close()
-
-	for _, content := range sourceLyrics.Content {
-		fmt.Fprintln(file, content)
-	}
-}
-
 func timestampToString(ts Timestamp) string {
 	if ts.Hours > 0 {
 		return fmt.Sprintf("[%02d:%02d:%02d.%03d]", ts.Hours, ts.Minutes, ts.Seconds, ts.Milliseconds)