Make Suno play the harmony you want: pick a key and progression, paste lyrics — the builder places [chords] across the lines and prepares the Style box line. All in your browser.
Works: simple triads in brackets + the key in the Style box. Common progressions stay stable.
Unreliable: jazz/extended chords, mid-song key changes, specific voicings/inversions.
Important: chords must be in square brackets — otherwise Suno sings "A minor, F, G" out loud. This is probabilistic: best shot, not a 100% guarantee.