10279 / 18210 · Workshop 85 — Extending the Form: Intros, Interludes, Turnarounds, Tags, Vamps, Codas, and Writing New Material That Still Belongs to the Song← prev⊞ allnext →
85.19Level 10 — interval motif only
If tune prominently uses:
ascending fourth,
build intro from fourths.
No literal melodic quotation required.
This is subtle thematic design.