→ all versions of this pipeline
You liked the generated one, so these are five more built from your own opening music rather than from nothing. All in its key, on its chords, at the same quiet level, and matched to one loudness so nothing wins by being louder.
What your opening actually is, measured before any of these were made: A major throughout, 120 beats a minute, and the chords go A, E, D, A — one per bar. The sound is almost a pure tone rather than a real bell, doubled an octave up and very slightly out of tune with itself, which is what gives it the shimmer. It has almost nothing above 2.5 kHz, and it already leaves a gap exactly where a small child’s quiet voice sits.
Hear the handover first. The whole point of continuing the theme is the moment the opening ends and the story begins. Two minutes cannot show you that; this can.
The same two minutes as it sounds today. Play it first and again halfway, or everything starts to sound like an improvement.
Built on your opening's own chords, in the same key, with a bell-like voice. Of everything tried across both rounds this is the only one that is BOTH safely under the children's quiet voices and still actually audible on a phone speaker. Nothing else came close on the second point.
The catch. Seventeen minutes of it is a loop. Generating a longer continuation was tried and measured worse on every count, so the loop stayed.
The only candidate that keeps the bell register of the opening, so it sounds most like the show continuing rather than something new underneath it.
The catch. On a proper narrow-band measurement it dips just under quiet speech around 354 Hz. That is the thing we said must not happen.
Your opening's chord movement with the melody removed, so nothing competes with the story.
The catch. Plainer. It reads as warmth rather than as your show.
The gentlest of them, furthest from anything that could pull a child's attention.
The catch. Furthest from the opening too. It shares the key and little else.
The most restrained version, for if all of these feel like too much.
The catch. Also dips under quiet speech on the narrow-band measurement, and at this point you may as well have no bed.
Two minutes never reveals whether music wears out. This is the recommendation at full episode length, music only. It is a loop, and the honest question is whether you can tell.