At first glance, nothing. But there is a surprising link between a dying Baroque composer and a legendary rock guitarist — and that link is called dissonance.

In our latest video, we explore what dissonance is, why it carries such emotional power, and how Pergolesi used it in his Stabat Mater — written while he was dying of tuberculosis at just 26 years old. A work he never lived to hear performed, yet one that grew into one of the most admired compositions of the 18th century.

Two artists. Two centuries. One powerful idea.