diff --git a/src/main/java/com/mr/domain/learning/dto/res/LearningPracticeDataResponseDTO.java b/src/main/java/com/mr/domain/learning/dto/res/LearningPracticeDataResponseDTO.java
index c912c0c2..f00d2a09 100644
--- a/src/main/java/com/mr/domain/learning/dto/res/LearningPracticeDataResponseDTO.java
+++ b/src/main/java/com/mr/domain/learning/dto/res/LearningPracticeDataResponseDTO.java
@@ -15,7 +15,7 @@ public record PracticeDataResultDTO(
             String keySignature,
 
             @Schema(description = "AI 채점용 + 악보 렌더링용 데이터 (실제 JSON 객체로 응답됨)",
-                    example = "{\"recording\":[{\"midi\":60,\"velocity\":100,\"start\":0,\"duration\":1}],\"options\":{\"bpm\":120,\"beatsPerBar\":4,\"beatType\":4,\"key\":\"C\",\"mode\":\"major\",\"title\":\"테스트 연주\"}}")
+                    example = "{\"recording\":[{\"midi\":60,\"velocity\":100,\"start\":0,\"duration\":1}],\"options\":{\"bpm\":120,\"beatsPerBar\":4,\"beatType\":4,\"key\":\"C\",\"mode\":\"major\",\"title\":\"테스트 연주\"},\"chords\":[{\"bar\":1,\"beat\":1,\"symbol\":\"Dm7\"},{\"bar\":2,\"beat\":1,\"symbol\":\"G7\"},{\"bar\":3,\"beat\":1,\"symbol\":\"Cmaj7\"}]}")
             @JsonRawValue String midiData
     ) {
         public static PracticeDataResultDTO from(PlayingExample playingExample) {