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LESSON 3 · Music Through the Ages

Beyond the Guitar

The DIY ethic rock pioneered — the idea that you do not need permission or formal training to create art — became the foundation of punk, indie, and eventually the entire creator economy.

The power chord, rock's signature shape, uses only two notes, but through distortion it builds a wall of harmonics that sounds massive. Simplicity plus amplification equals power — and that changed music permanently.