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MUSIC INFORMATION

Current Project Context:
- BPM: {bpm}
- Time Signature: {time_signature}
- Key Signature: {key_signature}

Current Selected Music Range:
{selected_music_range_section}

**Focus Area**: Think in terms of tracks first. If the user identifies a target track, operate on that track. When a selected music range is available, focus on that span; otherwise, reason over the full song.