This release contains only the music track from Base by Base Episode 5.

Song title: Footprints in the Flow
Original Base by Base episode: 5: Promoter Footprints Predicting Preterm Birth

Article metadata:
Article title: Genome-wide nucleosome footprints of plasma cfDNA predict preterm birth: A case-control study
Journal: PLOS Medicine
DOI: 10.1371/journal.pmed.1004571
Reference: Guo Z, Wang K, Huang X, Li K, Ouyang G, Yang X, et al. (2025) Genome-wide nucleosome footprints of plasma cfDNA predict preterm birth: A case-control study. PLoS Med 22(4): e1004571. https://doi.org/10.1371/journal.pmed.1004571

Lyrics:
Verse 1
A quiet sample, a borrowed light,
A river of fragments in the middle of the night,
Tiny signs in the bloodstream, hidden in plain view,
Footprints on the genome, spelling something true.

Pre-Chorus
Read the rhythm at the doorway of a gene,
Where the nucleosomes stand, like a curtain on a scene,
If the pattern shifts early, we don’t have to wait,
We can name the risk before it’s too late.

Chorus
Footprints in the flow, tell me where it goes,
Signals in the shadows, under soft fluorescent glows,
Eighty-three sparks in a line, turning noise into a sign,
Hold on—there’s time… we can draw the borderlines.

Verse 2
Promoters like streetlights, blinking on and off,
Some burn cold with worry, some flicker, some drop,
Placenta under pressure, immune storms in the wings,
And the data keeps talking in a thousand quiet things.

Bridge
No extra needle, no new scars to hide,
Just the same old sequencing, and a sharper way to guide,
We’re building early answers from the language that remains,
So care can move faster than the fear in our veins.

Final Chorus
Footprints in the flow, now we know the code,
From first-trimester whispers to a clearer, safer road,
Eighty-three sparks in a line, turning noise into a sign,
Hold on—there’s time… let the future come in time.