lyrics-validator

name: lyrics-validator description: Verify translated lyrics against musical constraints including syllable counts, rhyme scheme, and syllable patterns. Use after translating lyrics to check quality.

Lyrics Validator

Verify that translated lyrics meet all musical constraints at once.

Usage

python skills/lyrics-validator/scripts/validate.py "<language>" '<target_syllables_json>' "<line1>" "<line2>" ...

Example:

python skills/lyrics-validator/scripts/validate.py cmn '[5,7,5]' "随风而去吧" "在那遥远的天边飞" "随它去吧"

Output is JSON with:

• syllables: actual syllable counts per line
• syllables_match: whether all match targets
• rhyme_endings: detected rhyme endings
• rhymes_valid: whether rhyme scheme is satisfied
• feedback: human-readable constraint feedback

Constraint Priority

1. Syllable patterns (highest) - word-level syllable distribution
2. Syllable counts - total syllables per line must match exactly
3. Rhyme scheme (lowest) - lines with same label must rhyme

From Python

from validate import verify_all_constraints

result = verify_all_constraints(
    lines=["line1", "line2"],
    language="cmn",
    target_syllables=[5, 7],
    rhyme_scheme="AA",
    target_patterns=[[2, 3], [3, 4]],
)