[Verse 1] Before the heart divided into channels clean The septum should have carved a wall between But in truncus, that sculptor never came Left one giant vessel bearing both their names The aorticopulmonary wall erased A single trunk now occupies their place [Chorus] Never formed, never formed The septum that should separate the storm One truncus rules where two should reign Straddling ventricles like a bridge through rain VSD below, the hole remains 'Cause the septum never formed its chains [Verse 2] This massive trunk bestrides both chambers wide Supplying three circulations from one side Systemic, pulmonary, coronary too All flowing from this singular debut The conotruncal septum missed its cue Left mixing blood in crimson rendezvous [Chorus] Never formed, never formed The septum that should separate the storm One truncus rules where two should reign Straddling ventricles like a bridge through rain VSD below, the hole remains 'Cause the septum never formed its chains [Bridge] Always a VSD beneath the valve The upper septum couldn't quite resolve Without descent of conotruncal might Two ventricles share their crimson flight Mixed together in embryonic plight [Final Chorus] Never formed, never formed The fundamental flaw that breaks the norm One vessel where division should have grown The truncus claims the cardiac throne Both ventricles feed the same domain 'Cause the septum never formed again [Outro] Truncus arteriosus tells the tale Of separation's embryonic fail
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