In the run-up to the release of Fiona Apple’s long-awaited fourth album, The Idler Wheel Is Wiser Than The Driver Of The Screw, And Whipping Cords Will Serve You More Than Ropes Will Ever Do, the admittedly reclusive singer-songwriter has granted a few interviews. The first to catch my attention was last week’s sit-down with SPIN.

Though I found the exchange between Apple and writer Zach Baron to be quite revelatory, one sentence about The Idler Wheel in one of the last paragraphs gave me great pause: “There isn’t a single electric instrument on it: The entire recording is acoustic.” Couple that description with my less than enthusiastic reception of the album’s first single, “Every Single Night,” and I began to wonder whether major disappointment was lurking around the bend.

But today, Apple shared a second track from The Idler Wheel, “Werewolf,” which successfully keeps such doubts at bay. Sure, the sound is largely unadorned (piano and brushed drums), but as a finished piece, “Werewolf” sits somewhere between her debut, Tidal, and sophomore set, When The Pawn. Unlike “Every Single Night,” there’s a traditional structure to the song — hello there, melody — and “Werewolf” also features a truly brilliant lyric: “Nothing wrong when a song ends in a minor key.”

Listen to the last third of “Werewolf” for what sounds like a bunch of kids going Lord Of The Flies on a playground. Turns out it’s nearly exactly true.

Pre-order The Idler Wheel Is Wiser Than The Driver Of The Screw And Whipping Cords Will Serve You More Than Ropes Will Ever Do, out 6/19, via iTunes.