Scott Strazzante/Chicago TribuneThe Radioheads debuted a new tune called “Full Stop” in Tinley Park, Illinois last Sunday night (June 10) en massive summer tour route, adding to a small handful of the band’s first follow-up live teases to early 2011′s The King of Limbs. Rumblings of the emergent cut came in Cincinnati, when the band had been heard performing it during soundcheck. While an enterprising stage-hand in Arizona back in March sold off some early lyrics and chord changes on Ebay for almost a grand. God bless enterprising nerds.

Unlike “Cut a Hole,” “Skirting on the Surface” and “Identikit” before it, “Full Stop” is saturated with some of the more foreboding energy from the darker moments of The King of Limbs, Yorke looping a gnome-wail with the repeating line “the truth will mess you up,” though falling in line altogether with their trademark scattering polyrhythmics. There’s a lot going on sonically, otherwise – swirling synth fills, woodblock breakdowns, etc. Which is refreshing to see an arena-rock band orchestrate something to fruition like so, even if we’re cheating on a potential studio recording to come, Yorke promising after the song ended, “Like wine, it will better with age.”