diff --git a/music-lab/app/pipeline/orchestrator.py b/music-lab/app/pipeline/orchestrator.py
index ce2a5ff..ec27ed2 100644
--- a/music-lab/app/pipeline/orchestrator.py
+++ b/music-lab/app/pipeline/orchestrator.py
@@ -202,12 +202,24 @@ async def _run_video(p, ctx):
     vd = setup["visual_defaults"]
     audio_path = ctx["audio_path"]
     cover_path = _local_path(p["cover_url"])
+
+    style = p.get("visual_style") or vd.get("default_visual_style", "essential")
+    bg_mode = p.get("background_mode") or vd.get("default_background_mode", "static")
+    bg_path = None
+    if bg_mode == "video_loop":
+        loop_local = os.path.join(storage.pipeline_dir(p["id"]), "loop.mp4")
+        bg_path = loop_local if os.path.isfile(loop_local) else None
+
     out = await asyncio.to_thread(
         video.generate,
         pipeline_id=p["id"], audio_path=audio_path, cover_path=cover_path,
         genre=ctx["genre"],
         duration_sec=ctx["duration_sec"],
-        resolution=vd["resolution"], style=vd["style"],
+        resolution=vd.get("resolution", "1920x1080"),
+        style=style,
+        background_mode=bg_mode,
+        background_path=bg_path,
+        tracks=ctx["tracks"] if len(ctx["tracks"]) > 1 else None,
     )
     return {"next_state": "video_pending", "fields": {"video_url": out["url"]}}
 
@@ -230,6 +242,7 @@ async def _run_meta(p, ctx, feedback):
                "duration_sec": ctx["duration_sec"], "moods": ctx["moods"]},
         template=setup["metadata_template"],
         trend_keywords=trend_top, feedback=feedback,
+        tracks=ctx["tracks"] if len(ctx["tracks"]) > 1 else None,
     )
     return {"next_state": "meta_pending",
             "fields": {"metadata_json": json.dumps(out, ensure_ascii=False)}}
diff --git a/music-lab/app/pipeline/video.py b/music-lab/app/pipeline/video.py
index e3d06f7..c7b858b 100644
--- a/music-lab/app/pipeline/video.py
+++ b/music-lab/app/pipeline/video.py
@@ -24,7 +24,10 @@ class VideoGenerationError(Exception):
 
 def generate(*, pipeline_id: int, audio_path: str, cover_path: str,
              genre: str, duration_sec: int, resolution: str = "1920x1080",
-             style: str = "visualizer") -> dict:
+             style: str = "essential",
+             background_mode: str = "static",
+             background_path: str | None = None,
+             tracks: list[dict] | None = None) -> dict:
     """원격 Windows GPU 서버 호출. 다운/실패 시 즉시 예외."""
     if not ENCODER_URL:
         raise VideoGenerationError(
@@ -35,6 +38,7 @@ def generate(*, pipeline_id: int, audio_path: str, cover_path: str,
     nas_audio = _container_to_nas(audio_path)
     nas_cover = _container_to_nas(cover_path)
     nas_output = _container_to_nas(out_path)
+    nas_bg = _container_to_nas(background_path) if background_path else None
 
     payload = {
         "cover_path_nas": nas_cover,
@@ -43,9 +47,13 @@ def generate(*, pipeline_id: int, audio_path: str, cover_path: str,
         "resolution": resolution,
         "duration_sec": duration_sec,
         "style": style,
+        "background_mode": background_mode,
+        "background_path_nas": nas_bg,
+        "tracks": tracks or [],
     }
 
-    logger.info("Windows 인코더 호출: pipeline=%d audio=%s", pipeline_id, audio_path)
+    logger.info("Windows 인코더 호출: pipeline=%d audio=%s style=%s bg_mode=%s",
+                 pipeline_id, audio_path, style, background_mode)
     try:
         with httpx.Client(timeout=ENCODER_TIMEOUT_S) as client:
             resp = client.post(f"{ENCODER_URL}/encode_video", json=payload)
diff --git a/music-lab/tests/test_video_thumb.py b/music-lab/tests/test_video_thumb.py
index 19ae980..266ea99 100644
--- a/music-lab/tests/test_video_thumb.py
+++ b/music-lab/tests/test_video_thumb.py
@@ -130,3 +130,33 @@ def test_container_to_nas_music_path(monkeypatch):
     monkeypatch.setattr(video, "NAS_VIDEOS_ROOT", "/volume1/docker/webpage/data/videos")
     monkeypatch.setattr(video, "NAS_MUSIC_ROOT", "/volume1/docker/webpage/data/music")
     assert video._container_to_nas("/app/data/abc.mp3") == "/volume1/docker/webpage/data/music/abc.mp3"
+
+
+@respx.mock
+def test_generate_video_passes_essential_params(encoder_env, tmp_path, monkeypatch):
+    monkeypatch.setattr(storage, "VIDEO_DATA_DIR", str(tmp_path))
+    captured = {}
+
+    def hook(req):
+        import json as _json
+        captured["body"] = _json.loads(req.content)
+        return Response(200, json={"ok": True, "duration_ms": 5000,
+                                    "output_path_nas": "/v/3/video.mp4",
+                                    "output_bytes": 10_000_000,
+                                    "encoder": "h264_nvenc", "preset": "p4"})
+
+    respx.post("http://192.168.45.59:8765/encode_video").mock(side_effect=hook)
+    out = video.generate(
+        pipeline_id=3, audio_path="/app/data/x.mp3",
+        cover_path="/app/data/videos/3/cover.jpg",
+        genre="mix", duration_sec=3600, resolution="1920x1080",
+        style="essential", background_mode="video_loop",
+        background_path="/app/data/videos/3/loop.mp4",
+        tracks=[{"id": 1, "title": "T1", "start_offset_sec": 0}],
+    )
+    body = captured["body"]
+    assert body["style"] == "essential"
+    assert body["background_mode"] == "video_loop"
+    assert body["background_path_nas"] == "/volume1/docker/webpage/data/videos/3/loop.mp4"
+    assert body["tracks"][0]["title"] == "T1"
+    assert out["url"].endswith("/3/video.mp4")