Tagged tempo

Digits are invisible to a syllable count and ambiguous to a singer, and writing them out fixes both problems at once.

A line is measured in bars, not seconds, so the syllable budget stays put while the tempo decides how fast you have to deliver it.

Characters are the weak signal for length, because a sheet can sit under the warning and still be a seven-minute song.

The number in your Style field is a nudge at best, but the tempo you end up with still decides how many syllables fit in a line.