Verifier-Guided Twelve-Tone Composition: A Generate-Verify-Repair Harness for Symbolic Music Generation
arXiv cs.AI 18 hours ago
Researchers developed a neuro-symbolic verification system that wraps language models to generate valid twelve-tone musical compositions, checking outputs against formal constraints before delivery. The system improved constraint-checked delivery from 13.3% to 48.1% across 40 controlled tasks with four paired models, with the harness abstaining on 51.9% of runs that failed verification. Expert evaluation showed preference for the harness-generated compositions over raw model output in adherence, perceived legality, and overall musical quality.