This revision updates a pop-to-jazz chord-generation rehearsal study. Best-epoch metrics still show that modest pop rehearsal preserves pop accuracy while improving jazz prediction, but v2 corrects released-checkpoint selection: the released F1 equals Phase 0, F2 had a transcription error, and ft-pop80-v2 restores a hash-distinct jazz-adapted F1 across 3 seeds.

翻译：本次修订更新了一项关于流行-爵士和弦生成的排练研究。最佳时期指标仍然表明，适度的流行排练能在保持流行准确度的同时提高爵士预测能力，但v2版本修正了已发布检查点的选择：已发布的F1等于Phase 0，F2存在转录错误，而ft-pop80-v2恢复了跨3个种子的哈希独特爵士适应F1。