ACE-Step v1 Text to Instrumentals Music

# Python 3.10+: pip install comfy-sdk==0.4.0
import os

from comfy_sdk import Comfy

api_key = os.environ.get("COMFY_API_KEY", "").strip()
if not api_key: raise RuntimeError("Set COMFY_API_KEY")
os.environ.setdefault("COMFY_BASE_URL", "https://cloud.comfy.org")
client = Comfy(api_key=api_key)
workflow = client.workflows.from_json({
    "14": {
        "class_type": "TextEncodeAceStepAudio",
        "inputs": {
            "clip": [
                "40",
                1
            ],
            "lyrics": "[instrumental]\n[break down]\n[drum fill]\n[chopped samples]\n",
            "lyrics_strength": 0.9900000000000002,
            "tags": "anime, kawaii pop, j-pop, childish, piano, guitar, synthesizer, fast, happy, cheerful, lighthearted"
        },
        "_meta": {
            "title": "TextEncodeAceStepAudio"
        }
    },
    "17": {
        "class_type": "EmptyAceStepLatentAudio",
        "inputs": {
            "batch_size": 1,
            "seconds": 30
        },
        "_meta": {
            "title": "Empty Ace Step 1.0 Latent Audio"
        }
    },
    "18": {
        "class_type": "VAEDecodeAudio",
        "inputs": {
            "samples": [
                "52",
                0
            ],
            "vae": [
                "40",
                2
            ]
        },
        "_meta": {
            "title": "VAE Decode Audio"
        }
    },
    "40": {
        "class_type": "CheckpointLoaderSimple",
        "inputs": {
            "ckpt_name": "ace_step_v1_3.5b.safetensors"
        },
        "_meta": {
            "title": "Load Checkpoint"
        }
    },
    "44": {
        "class_type": "ConditioningZeroOut",
        "inputs": {
            "conditioning": [
                "14",
                0
            ]
        },
        "_meta": {
            "title": "Conditioning Zero Out"
        }
    },
    "49": {
        "class_type": "LatentApplyOperationCFG",
        "inputs": {
            "end_percent": 1,
            "model": [
                "51",
                0
            ],
            "operation": [
                "50",
                0
            ],
            "start_percent": 0
        },
        "_meta": {
            "title": "LatentApplyOperationCFG"
        }
    },
    "50": {
        "class_type": "LatentOperationTonemapReinhard",
        "inputs": {
            "multiplier": 1.0000000000000002
        },
        "_meta": {
            "title": "LatentOperationTonemapReinhard"
        }
    },
    "51": {
        "class_type": "ModelSamplingSD3",
        "inputs": {
            "model": [
                "40",
                0
            ],
            "shift": 5.000000000000001
        },
        "_meta": {
            "title": "ModelSamplingSD3"
        }
    },
    "52": {
        "class_type": "KSampler",
        "inputs": {
            "cfg": 5,
            "denoise": 1,
            "latent_image": [
                "17",
                0
            ],
            "model": [
                "49",
                0
            ],
            "negative": [
                "44",
                0
            ],
            "positive": [
                "14",
                0
            ],
            "sampler_name": "euler",
            "scheduler": "simple",
            "seed": 257025689259434,
            "steps": 50
        },
        "_meta": {
            "title": "KSampler"
        }
    },
    "59": {
        "class_type": "SaveAudioMP3",
        "inputs": {
            "audio": [
                "18",
                0
            ],
            "filename_prefix": "audio/ComfyUI",
            "quality": "V0"
        },
        "_meta": {
            "title": "Save Audio (MP3) (DEPRECATED)"
        }
    }
})

# run() also passes api_key to the partner nodes in this workflow.
job = client.run(workflow, api_key=api_key)