Add YuE2 Hum-to-Song LoRA, projections and native FP32 VAE encoder

YuE2_Hum_LICENSE.txt

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+YuE2 model-weight license
+
+The YuE2-3B, YuE2-Vae and YuE2-Vae-legacy checkpoint weights are
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+https://huggingface.co/m-a-p/YuE2-Vae
+https://huggingface.co/m-a-p/YuE2-Vae-legacy
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YuE2_Hum_LoRA.safetensors

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+size 419487104

YuE2_Hum_NOTICES.md

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+# Third-party code notices
+
+The Oobleck decoder and SnakeBeta implementation in `vae.py` is derived
+from stable-audio-tools commit `a6ae0cdf8b2eb1567a4b42ceadddec3712d99d45`.
+The decoder retains the original activation equations and module hierarchy.
+Weight normalization is folded into ordinary convolution weights during repacking;
+the training paths are omitted. `hum.py` adds the matching Oobleck encoder
+for the optional hum-conditioning workflow, using the same licensed building blocks.
+
+- Oobleck / stable-audio-tools: Copyright (c) 2023 Stability AI, MIT.
+  Full text: `licenses/stable-audio-tools-MIT.txt`.
+- SnakeBeta / BigVGAN: Copyright (c) 2022 NVIDIA CORPORATION, MIT.
+  Full text: `licenses/SnakeBeta-NVIDIA-MIT.txt`.
+
+These notices cover the identified source code and retain its original licenses.
+The YuE2 model checkpoint weights are separately licensed under CC BY-NC 4.0;
+see MODEL_LICENSE for the scope and full terms. This does not relicense third-party code.
+
+Mothersuperior's YuE2 Hum-to-Song contribution supplies the combined real-audio
+and hum acoustic adapter, four learned conditioning projections, and the
+pitch-carrier / open-score continuation method:
+https://huggingface.co/Mothersuperior/YuE2-hum-to-song
+The combined adapter includes the rank-32 real-audio v4 decoder LoRA:
+https://huggingface.co/Mothersuperior/yue2-mothersuperior-realaudio-tokenizer-v4
+The hum adapter weights are CC BY-NC 4.0. Conversion preserves source revisions
+and tensor precision in `YuE2_Hum_manifest.json`; full input/output replacement
+weights are represented as deltas against WanGP's base acoustic checkpoint.

YuE2_Hum_Projections.safetensors

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+size 2130856

YuE2_Hum_manifest.json

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+{
+  "sources": {
+    "Mothersuperior/YuE2-hum-to-song": "cd323af53ebf61d613fb3d7717e7c8b9bb67f643",
+    "m-a-p/YuE2-Vae": "9a94e1d0ea9f8087e98f77fa88df4a4068104d2a"
+  },
+  "license": "CC-BY-NC-4.0",
+  "files": {
+    "YuE2_Hum_Projections.safetensors": {
+      "sha256": "0a3db74ed8fcba428e9035dda8e067e3a5317168d9d3d007ec54287d3231214e",
+      "tensors": 8,
+      "dtypes": [
+        "torch.float32"
+      ]
+    },
+    "YuE2_Hum_LoRA.safetensors": {
+      "sha256": "1cb07ebc820e84df7199997825adc74043c323a2543c61c118d65c48e62d3664",
+      "tensors": 396,
+      "dtypes": [
+        "torch.float32"
+      ]
+    },
+    "YuE2_VAE_Encoder.safetensors": {
+      "sha256": "50841b35ed670be7bc782d299e9bfd96ece56111a31ac900bcb6bf22f88a1dda",
+      "tensors": 174,
+      "dtypes": [
+        "torch.float32"
+      ]
+    }
+  }
+}

YuE2_VAE_Encoder.safetensors

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