110.172Apply to “Happy Birthday”

Because it is public domain, use its opening repeated-note idea as development seed.

Instead of replaying whole tune:

extract:

5-5-6-5 rhythm/gesture.

Develop:

• sequence
• fragmentation
• augmentation
• minor-mode reinterpretation
• bass imitation

Then reconstruct original tune's final phrase.

This teaches how even familiar/simple material can support a developmental interlude.