Happy Rock had uplifting lyrics, Grunge reflected teen anguish, and Techno and Dance was created by DJs mixing sounds for dance.
Happy Rock: a contrast to grunge, this style included more uplifting lyrics.
Grunge: a subset of alternative, also known as the Seattle sound, reflected the anguish of teen life and included minor chords.
Techno and Dance: music created by DJs that included mixing sounds and matching beats, also used for dance.
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