When a demo video’s bed is close but not shippable, I used to regenerate from zero. That “fixed” length sometimes and broke everything else. These days I treat soundtrack work like a small build loop with three distinct ops: extend , regenerate , and section edit . Mixing them up wastes cycles.

Workspace: Doremi . Tools that map cleanly to those ops: AI Music Extender and AI Music Editor .

Decision table (what I actually use)

Symptom Prefer Avoid

Motif good, cut is longer Extend Full regenerate

Length OK, one region fights VO / SFX Section edit Extending again

Direction is wrong (mood / genre / vocal) Regenerate (or remix elsewhere) Patching forever

Need a short loop to grow into a bed Extend from a keeper loop Stitching abrupt hard-cuts by hand

Loops themselves are a standard idea in production—repeating sections used as building blocks ( Loop (music) on Wikipedia).…