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MuScriptor: open multi-instrument music transcription

Contribution grade

Music transcription resources and training · Human-designed research method or resource

Reference score50,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Combined synthetic pretraining, aligned real-music finetuning, reinforcement-learning post-training and instrument-presence conditioning in an open-weight multi-instrument transcription model.

Scientific scope

Combined synthetic pretraining, aligned real-music finetuning, reinforcement-learning post-training and instrument-presence conditioning in an open-weight multi-instrument transcription model. Inherits sequence-to-sequence music transcription and GRPO. Real aligned-data collection is a substantial resource cost; released weights/code do not imply release or independent license validation of every training recording. Transcriptions remain fallible.

Evidence

The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. Inherits sequence-to-sequence music transcription and GRPO. Real aligned-data collection is a substantial resource cost; released weights/code do not imply release or independent license validation of every training recording. Transcriptions remain fallible.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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