Listen to the glass harp stylings of a street performer in Venice, Italy playing Hedwig’s Theme, the main theme song from the Harry Potter movie soundtracks. While touring the Italian city on vacation, Hashem Al-Ghaili filmed the performance, remarking that “art and physics go hand in hand.” A glass harp

…is played by running moistened or chalked fingers around the rim of the glasses. Each glass is tuned to a different pitch, either by grinding each goblet to the specified pitch, in which case the tuning is invariable, or by filling the glass with water until the desired pitch is achieved.

Watch this next: The Glass Armonica, Benjamin Franklin’s 1761 invention, which includes a performance of the same theme. Plus, more glass and water videos: The Inverted Glass Harp and a street performer playing Franz Liszt’s La Campanella.

via Boing Boing.

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