4 different sizes of cupper tubes and 4 different sizes of neons (pairs). Each tube is actually a jack and each jack is linked to a specific resonator.
Creation of a kind of expansion/contraction of the sound and the space.
The kids are connecting the different sources with musician
2 cuppers and 1 neon: colour problem
2 cuppers and 1 neon: With live, 2 different resonnators + 1 delay