High-Note Vowel Map — Pick Endings Your Chorus Can Belt

• Only the last word counts. That’s where a melodic phrase lands — the map grades the final sound of every line you paste.
• Three grades. SOAR: open vowels (a, o) and hummable consonants (n, m, l, r) — the note can ring. HOLD: sustainable but colored endings (ee, ay, uh). CLIP: stops and sibilants (t, k, p, s) that end the note abruptly.
• The advice is line-specific. Each row tells you what the ending does on a held note and what to swap it for if the melody needs to open up.

On a sustained note the vowel is the instrument — consonants only attack and release it. That’s why the biggest moments in pop land on go, glow, alone, far, and why a chorus that ends on at best or it lasts always feels smaller than written, no matter how good the melody is.

Clipped endings aren’t forbidden — a final t on the very last line of a song is punctuation, and punchy consonants suit rhythmic pre-choruses. The skill is putting clips where you mean them and open vowels where the melody climbs.

• Rescue the money line first. Find the line your melody holds highest, and make sure it ends SOAR. A one-word swap (fast → far, best → alone) usually does it.
• Kill stray s-endings. Plurals are the top offender — doors can become door, walls → wall, with the grammar fixed in a nearby word.
• Re-check after edits. Run the new ending through the Rhyme Scheme Mapper so your rescue doesn’t break the scheme, and the Singability Checker for the whole-line view.