Both v27 attempts failed for the same root cause. Here's the deep analysis:
Attempt 1: edit → eval (score 7.1, adherence 3.0) → retry Attempt 2: edit → eval (score 7.6, adherence 4.0) → fail
Both times the evaluator flagged Beat 6 (KEEP) and Beat 7 (KEEP) as critical instruction_adherence failures (scores 3-4/10). The instruction said "Move beats 6-7 up immediately after beat 3 sequence" but those beats stayed in place.