MVSep Mega 53 model and derived inference attribution

Author: ZFTurbo (Roman Solovyev)
Source: https://github.com/ZFTurbo/Music-Source-Separation-Training/releases/tag/v1.0.21
Model weights MIT confirmation: https://github.com/ZFTurbo/Music-Source-Separation-Training/issues/245#issuecomment-5834608838
Date: 2026-09-25T15:03:18Z

The author licenses the 53-stem weights under MIT. Training-data rights are not warranted by the author. This file records the author's terms, not a separate legal guarantee.

Official Music-Source-Separation-Training LICENSE (release commit ea7eb9c):

MIT License

Copyright (c) 2024 Roman Solovyev (ZFTurbo)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.


Inference uses audio-separator (MIT) and its BS-RoFormer implementation based on lucidrains/BS-RoFormer (MIT). Their original installed LICENSE notices remain applicable. The selected-head and DC/ISTFT inference sequence is derived from the above MSST release.


Derived architecture and export implementation notices:

audio-separator 0.47.0: https://github.com/nomadkaraoke/python-audio-separator
BS-RoFormer: https://github.com/lucidrains/BS-RoFormer

MIT License

Copyright (c) 2023 karaokenerds
Copyright (c) 2023 Phil Wang

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.