Harmony Generator

Assign one harmony note to each backing vocalist. The 3rd above is the most commonly used — it blends naturally with the lead and stays bright. The 5th above creates a fuller three-part stack when combined with the 3rd. The 4th below is the same pitch as the 5th above the chord root, which gives a rich, choir sound ideal for chorus moments in worship.

Diatonic means the harmony note belongs to the scale of the song's key. Staying diatonic avoids clashes and keeps all the voices sounding like they belong to the same musical world. Non-diatonic harmonies (chromatic harmonies) can be used intentionally for color, but diatonic harmonies are the safe default for congregational worship.

The harmony note is technically correct for the key, but it may not always fit the chord being played. For example, a note that is in the key but not in the current chord can create tension. Try matching the harmony note to the chord tones whenever possible. If the band is on a G chord (G–B–D), harmonies on B or D above the melody note will always work cleanly.