Measuring the "LMNOP Problem" in AI Songs — Prompt Fixes Backfired Only on Enumeration Lyrics

1Key Takeaways

• Originally published on Zenn (Japanese).
• When you write enumeration-style lyrics like "A, B, C, D…" or "January, February, March…" in AI music generation, the pronunciation can fall apart and become unintelligible — even when you thought you wrote a prompt of the same quality as any other line.
• In the songwriting community this is informally called the "LMNOP problem," a name that comes from how the "L-M-N-O-P" stretch of the alphabet song tends to get mashed together like a….