86.101Apply it to “Happy Birthday”

Because the melody is public domain, use it as a miniature through-composed study.

Possible structure:

Intro: fragment the opening rhythm.

Phrase 1: simple.

Phrase 2: bass begins moving more independently.

Phrase 3: melody expands into octave/climax.

Instead of stopping after phrase 4:

take the final rhythmic cell and turn it into interlude.

Interlude: modulate briefly.

Return: only phrases 3–4, transformed.

Tag: compress final phrase.

Coda: return to intro motif.

The tune becomes one small composition instead of:

intro + song + ending.