Learn Composing › Write Your First 8-Bar Melody › Lesson 3
⏱ ~8 min · Write Your First 8-Bar Melody (3/6)
You've written a 2-bar motif — now the song needs to grow. Does that mean inventing brand-new melody the whole way through? Not at all. The secret of a good melody is actually repetition. When an idea comes back, listeners think "ah, that's this song" — it becomes memorable, and the piece feels unified. For children's songs, repetition matters even more.
But what happens if you repeat the motif without changing a single note? The example below states the motif (A) twice in a row — an A A form. It sounds stable, sure, but it's like saying the same sentence twice: a little dull, with no sense of moving forward.
So composers repeat, but tweak the ending. This is called A A′ ("A, A prime"). In "Morning Walk," bar 3 repeats bar 1 (C–C–D–E) exactly, and only bar 4 changes: instead of G~ E~, we play D~ D~. D sits right next to C, the home note, so it creates a feeling of "we're not done yet — what comes next?" You get familiarity (repetition) and freshness (variation) at the same time.
The score below has bars 1–4 of "Morning Walk" filled in. Click "▶ Open in Editor" and play it back. Listen for how bar 3 repeats bar 1, and how the D~ D~ in bar 4 leaves you waiting for "the next part of the story." Even better, delete bar 4 and re-enter it yourself. Next lesson, we'll answer that feeling of suspense with the start of the second phrase (bars 5–6).