In this article
Melody is a shaped sequence of pitches and rhythms heard as a line. Harmony concerns how pitches relate when combined, including chords and implied chord movement. A melody can suggest harmony, but it does not always determine one unique accompaniment.
Hear the examples.
Choose an example, then press Play. Compare the notes as well as the sound.
C major
The major third is E. Keep C and G in place when comparing major with minor.
These are not Captain Plugins audio.Ready to play
Follow the line through time
A sung hook, bass riff or synth phrase can be a melody. Its identity comes from rhythm, contour, repetition and placement as well as its pitches. A memorable melody does not need a large range or many different notes.
Play or sing a short phrase without the backing. Notice its strongest notes and where it rests. Those points often matter more when choosing chords than a quick passing note between them.
Hear the notes working together
A keyboard may play the whole chord, but harmony can also be spread across bass, vocal, guitar and pads. C in the bass, E in a vocal and G in a synth together suggest C major even if no instrument plays the full triad.
Harmony need not sound smooth or relaxed. Dissonance can create tension, and music can also use one sustained centre without a conventional chord progression. Avoid treating every track as a four-chord song.
Reharmonize one note
Hold E while you compare C, Am and Fmaj7 underneath it. E is the third of C, the fifth of Am and the major seventh of Fmaj7. The melody note is unchanged, yet its relationship to the chord changes.
Next add a short phrase ending on E. Compare where each chord changes, not just which chord you use. A note that works briefly as tension can feel different when held for a whole bar.
Choose a starting point that suits the idea
If the vocal is the strongest idea, keep it and try accompaniment beneath it. If you have a chord loop, use chord tones as initial melodic targets, then connect them with rhythm and passing notes. Neither order is mandatory.
Review the bass last in this first sketch. It can strengthen the chord roots or introduce a deliberate slash-bass movement. If the melody becomes obscured, remove a competing upper note from the accompaniment before adding another layer.
Keep the notes in view.
| Element | Listen for | Editing question |
|---|---|---|
| Melody | Contour, rhythm and phrase endings | Which notes need emphasis? |
| Harmony | Chord quality and movement | What supports the held melody notes? |
| Bass | Lowest pitches and groove | Does it clarify or change the chord? |
| Texture | How the parts share space | Which layer can play less? |
Try it in Captain Chords.
Write a small progression in Captain Chords and create a melody over it. Keep the melody fixed while you change one chord, then listen to how the same note acquires a different role.
See the current editing workflow.
The Captain Plugins 8 update video shows the canvas and selection-based editing.
Common questions
Can a bassline be a melody?
Yes. A bassline can have a recognisable melodic shape while also supporting the harmony and groove.
Does a melody have only one correct set of chords?
Usually not. Several harmonizations can support it. Compare the important notes, harmonic rhythm and intended direction.
Do all songs need a chord progression?
No. Music can centre on a drone, riff, rhythm or single harmony. A changing chord sequence is one compositional option.