As part of the project WITHIN, Tarek Atoui has developed nine new instruments and a sound massage kit which expanded notions of hearing, beyond orality and are activated on the occasion of concerts and exhibitions.

Ouroboros is an instrument where sound is formed inside the mouth of the player. Conceived by Espen Sommer Eide, it was developed in discussion with people of different hearing abilities. The player places a speaker against his/ her throat and is therefore in direct contact with the sound of the instrument. He/she then stands in front of a set of microphones. By closing and opening the mouth, and without emitting sound, the player modulates and controls resonance and feedback frequencies between the speaker and the microphone. ¹