"Key Lime Pie" captures Camper Van Beethoven at their most cohesive and melancholic, trading much of their earlier experimental whimsy for a more focused indie rock sound tinged with country and folk influences. The album feels like a bittersweet meditation on American life, with David Lowery's vocals carrying a world-weary quality over jangly guitars and subtle violin flourishes that give the songs an aching, cinematic quality. Tracks like the opening "(I Was Born in a) Laundromat" establish the album's themes of mundane desperation and romantic longing, while the band's trademark eclecticism still surfaces in unexpected instrumental passages and genre shifts. The production has a warm, lived-in feel that makes even the most desolate songs feel oddly comforting, creating what many consider the band's most emotionally resonant and accessible work.