diff --git a/arty.yml b/arty.yml
index e4de8ed..32d5162 100644
--- a/arty.yml
+++ b/arty.yml
@@ -68,6 +68,11 @@ references:
     description: "DiffRhythm - Full-length song generation (up to 4m45s) with text/audio conditioning"
     essential: false
 
+  - url: https://github.com/billwuhao/ComfyUI_ACE-Step.git
+    into: $COMFYUI_ROOT/custom_nodes/ComfyUI_ACE-Step
+    description: "ACE Step - State-of-the-art music generation with 19-language support, voice cloning, and superior coherence"
+    essential: false
+
   - url: https://github.com/ssitu/ComfyUI_UltimateSDUpscale.git
     into: $COMFYUI_ROOT/custom_nodes/ComfyUI_UltimateSDUpscale
     description: "Ultimate SD Upscale for high-quality image upscaling"
@@ -368,6 +373,35 @@ scripts:
       exit 1
     fi
 
+  setup/comfyui-acestep: |
+    echo "========================================="
+    echo "  Installing ACE Step Custom Node"
+    echo "========================================="
+    echo ""
+
+    cd $COMFYUI_ROOT/custom_nodes
+
+    # Clone repository if not exists
+    if [ ! -d "ComfyUI_ACE-Step" ]; then
+      echo "Cloning ComfyUI_ACE-Step repository..."
+      git clone https://github.com/billwuhao/ComfyUI_ACE-Step.git
+    else
+      echo "ComfyUI_ACE-Step already exists, skipping clone"
+    fi
+
+    # Install dependencies in ComfyUI venv
+    echo ""
+    echo "Installing ACE Step dependencies..."
+    cd $COMFYUI_ROOT
+    source venv/bin/activate
+    pip install -r custom_nodes/ComfyUI_ACE-Step/requirements.txt
+    deactivate
+
+    echo ""
+    echo "✓ ACE Step custom node installed successfully"
+    echo "  Note: Download models separately using:"
+    echo "  bash /workspace/bin/artifact_huggingface_download.sh download -c models_huggingface.yaml --category audio_models"
+
   setup/pivoine-nodes: |
     echo "========================================="
     echo "  Linking Pivoine Custom Nodes"
diff --git a/comfyui/workflows/text-to-music/acestep-chinese-rap-v1.json b/comfyui/workflows/text-to-music/acestep-chinese-rap-v1.json
new file mode 100644
index 0000000..ab2a1b1
--- /dev/null
+++ b/comfyui/workflows/text-to-music/acestep-chinese-rap-v1.json
@@ -0,0 +1,65 @@
+{
+  "last_node_id": 5,
+  "last_link_id": 4,
+  "nodes": [],
+  "links": [],
+  "groups": [],
+  "config": {},
+  "extra": {
+    "workflow_info": {
+      "name": "ACE Step Chinese RAP with LoRA v1",
+      "description": "Chinese hip-hop generation using ACE Step with specialized Chinese RAP LoRA",
+      "version": "1.0.0",
+      "author": "valknar@pivoine.art",
+      "category": "text-to-music",
+      "tags": ["acestep", "chinese-rap", "lora", "hip-hop", "zh-language"],
+      "requirements": {
+        "models": [
+          "ace_step_v1_3.5b.safetensors",
+          "ace-step-chinese-rap-lora.safetensors (ACE-Step/ACE-Step-v1-chinese-rap-LoRA)"
+        ],
+        "vram_min": "8GB",
+        "vram_recommended": "16GB",
+        "custom_nodes": ["ComfyUI_ACE-Step (for LoRA loading)"]
+      },
+      "usage": {
+        "lora_strength": "0.8-1.0 (recommended for Chinese RAP)",
+        "language_tag": "[zh] prefix for Chinese lyrics",
+        "genre_tags": "chinese rap, hip-hop, trap, 90 BPM, 808 bass hi-hats snare, aggressive gritty, E minor",
+        "lyric_structure": "[verse], [chorus], [bridge] with Chinese characters",
+        "workflow": "LoadCheckpoint → LoadLoRA (strength 0.8-1.0) → TextEncode ([zh] + tags + lyrics) → KSampler → SaveAudio"
+      },
+      "benefits": {
+        "pronunciation": "Significantly improved Chinese pronunciation accuracy",
+        "genre_adherence": "Better hip-hop/electronic/trap style generation",
+        "cultural_authenticity": "More authentic Chinese rap flow and cadence",
+        "lyric_clarity": "Clearer articulation of Chinese characters"
+      },
+      "examples": {
+        "aggressive_rap": {
+          "tags": "chinese rap, 90 BPM, 808 bass hi-hats snare, aggressive gritty dark, E minor",
+          "lyrics": "[zh]\n[verse]\n在这个城市的夜晚 我独自前行\n没有人能够阻挡 我的决心\n[chorus]\n我要冲破这黑暗 找到光明\n不管有多少困难 我都不停"
+        },
+        "melodic_trap": {
+          "tags": "melodic trap, 85 BPM, 808 synth pad vocal chops, emotional melancholic, A minor",
+          "lyrics": "[zh]\n[verse]\n回忆像雨滴 落在我心里\n那些过去的日子 已经离去\n[chorus]\n但我还在这里 等待着奇迹\n希望有一天 能再次遇见你"
+        },
+        "boom_bap": {
+          "tags": "boom bap, 95 BPM, vinyl samples drums bass scratches, classic nostalgic, D minor",
+          "lyrics": "[zh]\n[verse]\n从街头到舞台 我一路走来\n用我的音乐 讲述我的未来\n[chorus]\n这就是我的故事 真实不虚伪\n中国说唱 永远不会退"
+        }
+      },
+      "notes": [
+        "LoRA specifically trained for Chinese hip-hop pronunciation and flow",
+        "Recommended strength: 0.8-1.0 (higher = stronger LoRA effect)",
+        "Works with aggressive rap, melodic trap, boom bap, and electronic styles",
+        "Improves pronunciation of complex Chinese characters and tones",
+        "Can combine with English sections using [en] language tags",
+        "BPM range: 80-120 for various hip-hop subgenres",
+        "Use aggressive/gritty tags for harder styles, emotional/melancholic for melodic",
+        "808 bass and hi-hats are characteristic of modern Chinese trap"
+      ]
+    }
+  },
+  "version": 0.4
+}
diff --git a/comfyui/workflows/text-to-music/acestep-multilang-t2m-v1.json b/comfyui/workflows/text-to-music/acestep-multilang-t2m-v1.json
new file mode 100644
index 0000000..a4747e6
--- /dev/null
+++ b/comfyui/workflows/text-to-music/acestep-multilang-t2m-v1.json
@@ -0,0 +1,48 @@
+{
+  "last_node_id": 5,
+  "last_link_id": 4,
+  "nodes": [],
+  "links": [],
+  "groups": [],
+  "config": {},
+  "extra": {
+    "workflow_info": {
+      "name": "ACE Step Multi-Language Text-to-Music v1",
+      "description": "Multi-language music generation with ACE Step (19 languages supported)",
+      "version": "1.0.0",
+      "author": "valknar@pivoine.art",
+      "category": "text-to-music",
+      "tags": ["acestep", "music-generation", "multi-language", "19-languages"],
+      "requirements": {
+        "models": ["ace_step_v1_3.5b.safetensors"],
+        "vram_min": "8GB",
+        "vram_recommended": "16GB",
+        "custom_nodes": ["ComfyUI_ACE-Step (optional, for language switching)"]
+      },
+      "supported_languages": [
+        "English [en]", "Chinese [zh]", "Japanese [ja]", "Korean [ko]",
+        "French [fr]", "Spanish [es]", "German [de]", "Italian [it]",
+        "Portuguese [pt]", "Russian [ru]", "Arabic [ar]", "Hindi [hi]",
+        "Thai [th]", "Vietnamese [vi]", "Indonesian [id]", "Malay [ms]",
+        "Filipino [fil]", "Turkish [tr]", "Polish [pl]"
+      ],
+      "usage": {
+        "language_tags": "Prefix lyrics with [en], [zh], [ja], [ko], etc.",
+        "mixed_language": "Use multiple language tags in same song",
+        "example_english": "[en]\\n[verse]\\nLet the music play\\n[chorus]\\nWe dance the night away",
+        "example_chinese": "[zh]\\n[verse]\\n让音乐响起\\n[chorus]\\n我们彻夜起舞",
+        "example_japanese": "[ja]\\n[verse]\\n音楽を鳴らそう\\n[chorus]\\n夜通し踊ろう",
+        "example_korean": "[ko]\\n[verse]\\n음악을 틀자\\n[chorus]\\n밤새 춤추자",
+        "example_mixed": "[en]\\n[verse]\\nLet the music play\\n[zh]\\n[chorus]\\n我们彻夜起舞\\n[ja]\\n[bridge]\\n夜通し踊ろう"
+      },
+      "notes": [
+        "10 languages have optimal support: en, zh, ja, ko, fr, es, de, it, pt, ru",
+        "Other 9 languages have good support but may have minor accent variations",
+        "Use ComfyUI_ACE-Step custom node for automatic language detection",
+        "Mixed-language songs work well - ACE Step handles transitions smoothly",
+        "Language-specific pronunciation is excellent (better than most TTS models)"
+      ]
+    }
+  },
+  "version": 0.4
+}
diff --git a/comfyui/workflows/text-to-music/acestep-remix-m2m-v1.json b/comfyui/workflows/text-to-music/acestep-remix-m2m-v1.json
new file mode 100644
index 0000000..5ef6497
--- /dev/null
+++ b/comfyui/workflows/text-to-music/acestep-remix-m2m-v1.json
@@ -0,0 +1,39 @@
+{
+  "last_node_id": 5,
+  "last_link_id": 4,
+  "nodes": [],
+  "links": [],
+  "groups": [],
+  "config": {},
+  "extra": {
+    "workflow_info": {
+      "name": "ACE Step Music-to-Music Remix v1",
+      "description": "Music-to-music remixing with style transfer and lyric changes",
+      "version": "1.0.0",
+      "author": "valknar@pivoine.art",
+      "category": "text-to-music",
+      "tags": ["acestep", "music-to-music", "remix", "style-transfer"],
+      "requirements": {
+        "models": ["ace_step_v1_3.5b.safetensors"],
+        "vram_min": "8GB",
+        "vram_recommended": "16GB"
+      },
+      "usage": {
+        "denoise_ranges": {
+          "subtle_changes": "0.1-0.3 (minor style tweaks)",
+          "moderate_remix": "0.4-0.6 (noticeable changes)",
+          "major_transformation": "0.7-1.0 (completely different style)"
+        },
+        "workflow": "LoadAudio → TextEncode (new style) → KSampler (denoise 0.1-0.7) → SaveAudio",
+        "vocal_control": "Use LatentOperationTonemapReinhard with multiplier 0.5-2.0"
+      },
+      "notes": [
+        "Lower denoise preserves more of the original audio structure",
+        "Higher denoise creates more dramatic transformations",
+        "Can change genre, tempo, instruments while keeping melody",
+        "Excellent for remixing existing songs or creating variations"
+      ]
+    }
+  },
+  "version": 0.4
+}
diff --git a/comfyui/workflows/text-to-music/acestep-simple-t2m-v1.json b/comfyui/workflows/text-to-music/acestep-simple-t2m-v1.json
new file mode 100644
index 0000000..d33db9a
--- /dev/null
+++ b/comfyui/workflows/text-to-music/acestep-simple-t2m-v1.json
@@ -0,0 +1,266 @@
+{
+  "last_node_id": 5,
+  "last_link_id": 4,
+  "nodes": [
+    {
+      "id": 1,
+      "type": "CheckpointLoaderSimple",
+      "pos": [100, 100],
+      "size": [315, 98],
+      "flags": {},
+      "order": 0,
+      "mode": 0,
+      "outputs": [
+        {
+          "name": "MODEL",
+          "type": "MODEL",
+          "links": [1]
+        },
+        {
+          "name": "CLIP",
+          "type": "CLIP",
+          "links": [2]
+        },
+        {
+          "name": "VAE",
+          "type": "VAE",
+          "links": []
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "CheckpointLoaderSimple"
+      },
+      "widgets_values": [
+        "ace_step_v1_3.5b.safetensors"
+      ],
+      "title": "Load ACE Step Checkpoint"
+    },
+    {
+      "id": 2,
+      "type": "CLIPTextEncode",
+      "pos": [500, 100],
+      "size": [400, 200],
+      "flags": {},
+      "order": 1,
+      "mode": 0,
+      "inputs": [
+        {
+          "name": "clip",
+          "type": "CLIP",
+          "link": 2
+        }
+      ],
+      "outputs": [
+        {
+          "name": "CONDITIONING",
+          "type": "CONDITIONING",
+          "links": [3]
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "CLIPTextEncode"
+      },
+      "widgets_values": [
+        "energetic rock, 140 BPM, electric guitar drums bass, powerful, D minor\n\n[verse]\nBreaking through the walls tonight\nFacing all my fears head on\n[chorus]\nWe rise together, burning bright\nNothing can hold us down for long\n[bridge]\nThrough the fire, through the rain\n[outro]"
+      ],
+      "title": "Text Prompt (Tags + Lyrics)"
+    },
+    {
+      "id": 3,
+      "type": "EmptyLatentAudio",
+      "pos": [500, 350],
+      "size": [315, 106],
+      "flags": {},
+      "order": 2,
+      "mode": 0,
+      "outputs": [
+        {
+          "name": "LATENT",
+          "type": "LATENT",
+          "links": [4]
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "EmptyLatentAudio"
+      },
+      "widgets_values": [
+        60,
+        512,
+        1
+      ],
+      "title": "Empty Latent (60 seconds)"
+    },
+    {
+      "id": 4,
+      "type": "KSampler",
+      "pos": [900, 100],
+      "size": [315, 262],
+      "flags": {},
+      "order": 3,
+      "mode": 0,
+      "inputs": [
+        {
+          "name": "model",
+          "type": "MODEL",
+          "link": 1
+        },
+        {
+          "name": "positive",
+          "type": "CONDITIONING",
+          "link": 3
+        },
+        {
+          "name": "negative",
+          "type": "CONDITIONING",
+          "link": null
+        },
+        {
+          "name": "latent_image",
+          "type": "LATENT",
+          "link": 4
+        }
+      ],
+      "outputs": [
+        {
+          "name": "LATENT",
+          "type": "LATENT",
+          "links": [5]
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "KSampler"
+      },
+      "widgets_values": [
+        123,
+        "randomize",
+        27,
+        7.0,
+        "euler",
+        "normal",
+        1.0
+      ],
+      "title": "Sampler (27 steps, cfg=7.0)"
+    },
+    {
+      "id": 5,
+      "type": "VAEDecode",
+      "pos": [1300, 100],
+      "size": [210, 46],
+      "flags": {},
+      "order": 4,
+      "mode": 0,
+      "inputs": [
+        {
+          "name": "samples",
+          "type": "LATENT",
+          "link": 5
+        },
+        {
+          "name": "vae",
+          "type": "VAE",
+          "link": null
+        }
+      ],
+      "outputs": [
+        {
+          "name": "AUDIO",
+          "type": "AUDIO",
+          "links": [6]
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "VAEDecode"
+      },
+      "title": "Decode Audio"
+    },
+    {
+      "id": 6,
+      "type": "SaveAudio",
+      "pos": [1550, 100],
+      "size": [315, 58],
+      "flags": {},
+      "order": 5,
+      "mode": 0,
+      "inputs": [
+        {
+          "name": "audio",
+          "type": "AUDIO",
+          "link": 6
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "SaveAudio"
+      },
+      "widgets_values": [
+        "acestep_simple_output"
+      ],
+      "title": "Save Audio"
+    }
+  ],
+  "links": [
+    [1, 1, 0, 4, 0, "MODEL"],
+    [2, 1, 1, 2, 0, "CLIP"],
+    [3, 2, 0, 4, 1, "CONDITIONING"],
+    [4, 3, 0, 4, 3, "LATENT"],
+    [5, 4, 0, 5, 0, "LATENT"],
+    [6, 5, 0, 6, 0, "AUDIO"]
+  ],
+  "groups": [],
+  "config": {},
+  "extra": {
+    "workflow_info": {
+      "name": "ACE Step Simple Text-to-Music v1",
+      "description": "Basic text-to-music generation using ACE Step with native ComfyUI nodes (60 seconds)",
+      "version": "1.0.0",
+      "author": "valknar@pivoine.art",
+      "category": "text-to-music",
+      "tags": ["acestep", "music-generation", "text-to-music", "simple", "60s"],
+      "requirements": {
+        "models": ["ace_step_v1_3.5b.safetensors (Comfy-Org/ACE-Step_ComfyUI_repackaged)"],
+        "vram_min": "8GB",
+        "vram_recommended": "16GB",
+        "custom_nodes": []
+      },
+      "usage": {
+        "checkpoint": "ace_step_v1_3.5b.safetensors",
+        "prompt_format": "Tags + Lyrics with section markers",
+        "tags": "style, tempo (BPM), instruments, mood, key/scale",
+        "lyrics_format": "[verse], [chorus], [bridge], [outro], [inst] sections",
+        "duration": "60 seconds (adjustable via EmptyLatentAudio)",
+        "steps": "27 (default, quality-speed balance)",
+        "cfg_scale": "7.0 (classifier-free guidance)",
+        "seed": "123 or randomize for variation"
+      },
+      "performance": {
+        "generation_time": "~2 seconds on RTX 4090 (30x real-time)",
+        "vram_usage": "~8-12GB during generation",
+        "quality": "High-quality coherent music with lyric alignment"
+      },
+      "notes": [
+        "ACE Step is 15x faster than LLM baselines with superior structural coherence",
+        "Supports 19 languages - use language tags like [en], [zh], [ja], [ko]",
+        "For multi-language: Prefix lyrics with language code",
+        "BPM range: 60-180, optimal 90-140",
+        "Key signatures: Major/minor scales work best",
+        "Use [inst] for instrumental sections without lyrics",
+        "Increase steps to 35-50 for higher quality (slower)",
+        "Lower CFG (4-6) for more creative, higher (8-10) for faithful to prompt"
+      ],
+      "examples": {
+        "rock_example": {
+          "tags": "energetic rock, 140 BPM, electric guitar drums bass, powerful, D minor",
+          "lyrics": "[verse]\\nBreaking through the walls tonight\\n[chorus]\\nWe rise together, burning bright"
+        },
+        "pop_example": {
+          "tags": "upbeat pop, 120 BPM, synth piano drums, cheerful happy, C major",
+          "lyrics": "[verse]\\nSunshine on a summer day\\n[chorus]\\nDancing all our cares away"
+        },
+        "ballad_example": {
+          "tags": "emotional ballad, 70 BPM, piano strings, melancholic sad, A minor",
+          "lyrics": "[verse]\\nMemories of yesterday\\n[chorus]\\nWishing you were here to stay"
+        }
+      }
+    }
+  },
+  "version": 0.4
+}
diff --git a/models_huggingface.yaml b/models_huggingface.yaml
index 5a051f0..bd9d9f3 100644
--- a/models_huggingface.yaml
+++ b/models_huggingface.yaml
@@ -219,6 +219,34 @@ model_categories:
         - source: "pytorch_model.bin.index.json"
           dest: "musicgen-large-pytorch_model.bin.index.json"
 
+    # ACE Step v1 3.5B - State-of-the-art music generation
+    - repo_id: Comfy-Org/ACE-Step_ComfyUI_repackaged
+      description: ACE Step v1 3.5B - Fast coherent music generation with 19-language support
+      size_gb: 7.7
+      essential: true
+      category: audio
+      type: checkpoints
+      format: safetensors
+      vram_gb: 16
+      duration_seconds: 240
+      notes: 15x faster than LLM baselines, superior structural coherence, voice cloning, 19-language lyrics
+      files:
+        - source: "all_in_one/ace_step_v1_3.5b.safetensors"
+          dest: "ace_step_v1_3.5b.safetensors"
+
+    # ACE Step Chinese RAP LoRA (optional)
+    - repo_id: ACE-Step/ACE-Step-v1-chinese-rap-LoRA
+      description: ACE Step Chinese RAP LoRA - Enhanced Chinese pronunciation and hip-hop genre
+      size_gb: 0.3
+      essential: false
+      category: audio
+      type: loras
+      format: safetensors
+      notes: Improves Chinese pronunciation accuracy and hip-hop/electronic genre adherence
+      files:
+        - source: "pytorch_lora_weights.safetensors"
+          dest: "ace-step-chinese-rap-lora.safetensors"
+
   # ==========================================================================
   # SUPPORT MODELS (CLIP, IP-Adapter, etc.)
   # ==========================================================================