MIROS multi-instrument MIDI transcription: a MusicFM decoder path for AMT Challenge workflows

MIROS uses a MusicFM multi-decoder path for multi-instrument transcription and offers a public AMT alternative to compare with YourMT3+.

Why this tool deserves a technical introduction

MIROS is useful because it frames multi-instrument transcription as a decoder problem and exposes public repository and AMT Challenge evidence. The tool page places MIROS beside YourMT3+ so users can choose by audio type, runtime, and cleanup cost.

Practical limits

MIROS remains sensitive to mix quality, instrument overlap, rhythmic complexity, and source dynamics. Use the output for arrangement recovery, stem-aware reference, and further editing.

References

• amt-os/ai4m-miros
• 2025 AMT Challenge paper
• Official AMT leaderboard