When Index moves, it's in lockstep, as a single, indivisible unit. Alan Creedon and Alex Lichtenauer (both ex-Control Top) started the project in the summer of 2025, and it quickly became clear that it's sound would be an outgrowth of their close friendship. Eschewing the densely orchestrated compositions of their previous band, Index would instead focus on sweaty, visceral physicality, with Creedon's guitar intuitively latched to Lichtenauer's drum kit, navigating corridors of tricky rhythm as one. Creedon and Lichtenauer recorded Vis Inertiae in NYC with acclaimed producer Arthur Rizk (Power Trip, Show Me The Body). Despite a litany of freak injuries that befell Lichtenauer before and during the band's studio time, they say it was the best experience they ever had in a recording session, and Creedon concurs. Rizk was brought into the process early on, when the band played him some bare-bones demos that impressed him, and he was critical in helping ferry the songs to their final forms.