This release contains only the music track from Base by Base Episode 428. Song title: Colocalized Light Original Base by Base episode: 428: Genetic regulation of plasma metabolites in people with HIV Article metadata: Article title: Genome-wide association study of untargeted plasma metabolomic profiles identifies host genetic regulation in people with HIV Journal: Human Genetics and Genomics Advances DOI: 10.1016/j.xhgg.2026.100635 Reference: Ait Oumelloul M, van der Graaf A, Tang S, Thorball CW, Labarile M, Saadat A, Timonina V, Schöpf IC, Wandeler G, Nemeth J, Cavassini M, Calmy A, Schmid P, Stöckle M, Elzi L, Zamboni N, Kouyos RD, Tarr PE, Fellay J; Swiss HIV Cohort Study. Genome-wide association study of untargeted plasma metabolomic profiles identifies host genetic regulation in people with HIV. Human Genetics and Genomics Advances. 2026;7:100635. https://doi.org/10.1016/j.xhgg.2026.100635 Lyrics: Verse 1 Midnight plasma under neon glow, We cast a wide net, let the signals show. From quiet blood to a skyline of peaks, The genome hums in the language it speaks. Pre-Chorus Threads line up where the pathways meet, A hidden switch under every beat. Not one note alone—it's a mapped design, A borrowed spark where the data align. Chorus We found the link in the overlap light, Genes to molecules, holding on tight. Not fate, not guesswork—just cause in view, A new kind of compass to guide us through. Verse 2 Some names are shadows, formulas unconfirmed, But patterns persist where the evidence turned. One metabolite softens creatinine down, Another lifts lipids when it comes around. Bridge Still, we test what the numbers imply, Validate the shapes, ask “when” and “why.” From NAT8 lines to FUT2 doors, We trace small changes to bigger shores. Final Chorus We found the link in the overlap light, Genes to molecules, holding on tight. Step by step, we’re learning what heals, Turning mapped-out echoes into something real.