This release contains only the music track from Base by Base Episode 400.

Song title: Tenfold Between Us
Original Base by Base episode: 400: Complete chromosome 21 centromere sequencing and Down syndrome

Article metadata:
Article title: Complete chromosome 21 centromere sequencing of families with Down syndrome
Journal: The American Journal of Human Genetics
DOI: 10.1016/j.ajhg.2026.05.010
Reference: Mastrorosa F.K., Daponte A., de Gennaro L., et al. Complete chromosome 21 centromere sequencing of families with Down syndrome. The American Journal of Human Genetics. 113, 1–18 (2026). https://doi.org/10.1016/j.ajhg.2026.05.010

Lyrics:
Verse 1
I watched the bright screen draw a hidden ring
Letters on a ladder doing their quiet thing
Not a headline monster, not a simple sign
Just a spinning center keeping time

Pre-Chorus
We measured every repeat, every turn of the thread
Some stories get louder, some stay unsaid
It’s not “small means trouble,” that’s not the rule
But there’s a rare crack in the mirror’s pull

Chorus
Tenfold between us, same light in the core
Two halves of a compass on an uneven floor
Still the anchors hold, still the dancers align
But one hard tilt can bend the line
Tenfold between us—watch the moment slip
When chance and gravity trade a grip

Verse 2
Long reads like lanterns through a midnight maze
Mapping those echo blocks in shifting arrays
Family by family, we follow the trace
How a quiet mismatch can change the pace

Bridge
It’s not a single length that tells you what will be
It’s patterns in the center, history in the seam
Marks on the DNA, where the binders land
A signal that survives in each waiting hand

Final Chorus
Tenfold between us, not the whole world’s key
But a rare little lever in a minority
Still the anchors hold, still the dancers align
Till one hard tilt can bend the line
Tenfold between us—now we know what to chase
A deeper kind of measure, a sharper kind of grace

• (00:00:05) - A Rare Leper in the World