Clepsydra is a piece by Horatiu Radulescu for 16 sound icons.

This instrument, created by Radulescu itself, is a a grand piano laying vertically on its side, with the strings played in different ways: plucked, as a percussion instrument or by bowing.

Horatiu Radulescu – Clepsydra, for 16 sound icons – European Lucero Ensemble, dir. Radulescu