The sound toy consists on dragging circular coloured particles to the main window that produce sounds associated with moods and colours. A particle is a dot with a hearing range. It emits sounds whenever there is one or more particles within its hearing range and whenever it has waited enough time. Particles are also set to “sleep” at certain moments.
The icons on the top of the window indicate moods: happy, sad, anxious, sexy, and dreamy. Based on the analysis of sound/colour/mood correspondence, the draggable particles and background for the happy mood were designed with warm colours (from the yellow and orange family). The anxious mood corresponds to neutral colours, and the sad mood corresponds to dark blue colours. Red and black are supposed to be aggressive/passionate/love colours, so they correspond to the “sexy” icon. The dreamy mood has a light blue background and pink dragging particles.
The colours of the particles vary depending on the pitch of the notes. Higher sounds have lighter colours, and lower sounds have darker colours.
The scales used for each mood are based on music modes: Ionian, Aeolian, Phrygian, and Lydian. The notes were programmed using Markov Chains.
Ideally, the sound duration varies depending on the size of the circle. Larger circles have longer notes than smaller circles. This aspect is currently implemented only in the anxious and happy moods.
The development of the sound toy is still in progress.