The tone that defined a generation. Cobain's approach to guitar tone was anti-perfectionist: a cheap offset guitar, a Boss DS-1 cranked for maximum aggression, and a Small Clone chorus adding an underwater shimmer. The genius of Teen Spirit is the quiet-verse/loud-chorus dynamic. The verses are clean with chorus; the choruses slam the DS-1 for a wall of scooped, angry distortion. The mid-scooped character is key to the grunge sound: heavy lows, biting highs, and a hollow midrange.