Interactive controller of musical & optical illusion.

> Synaesthesia: the ability to hear colour or see sound. Many colour theories historically explore the relation between the vibrations in sound, light and colour.

An invitation to explore the sound and chromatic spectrums through the interaction with a custom development controller: the Hexa-Khrom. It consists of a hexagonal keyboard in which the correspondence between colour and sound is developed according to shapes and forms. The arrangement of notes and colours in the controller encourages an intuitive playing, as harmonic sounding keys are are grouped together. Thus, to execute a pentatonic scale (five notes), they keys of five neighbouring colours are selected; to play a diatonic scale (seven notes) the keys of seven adjacent colours will be chosen.