This release contains only the music track from Base by Base Episode 404.

Song title: DNA on the Outside
Original Base by Base episode: 404: RUNA Reveals Surface DNA on Exosomes

Article metadata:
Article title: A nucleic acid labeling chemistry reveals surface DNA on exosomes
Journal: Proceedings of the National Academy of Sciences
DOI: 10.1073/pnas.2532281123
Reference: Bošković F, Dutta Gupta P, Zhang J, Szostak JW, Krishnan Y. A nucleic acid labeling chemistry reveals surface DNA on exosomes. Proc Natl Acad Sci U S A. 2026;123(27):e2532281123. doi:10.1073/pnas.2532281123

Lyrics:
Verse 1
In the clean-room glow, in a late-night hush
Tiny parcels drift where the signals rush
We thought the message stayed sealed inside
But something bright was riding the outside

Pre-Chorus
A small switch flips with a careful heat
Mark the letters where the membranes meet
Draw the line—what’s in, what’s out
Turn the mystery into a map, no doubt

Chorus
DNA on the outside, lit like a flare
Not buried in the dark—it's hanging in the air
Tag it, trace it, watch it come alive
A hidden surface truth where the answers survive

Verse 2
Under stress, the repair lines fray and stall
And more bare strands show up on the wall
Scavenger hands reach, pull the vesicles near
And the quiet cells change gears when they hear

Bridge
From easy-going to a fighting stance
A colder calm becomes a hotter chance
Not every thread is fully understood
But the tool cuts clean where questions stood

Final Chorus
DNA on the outside, lit like a flare
A reversible mark says, “Look right there”
From damaged repair to immune rewrite
We turn a thin line into guiding light