The soundscape of Dakar is very special. The diversity of sounds that animate this city makes it too noisy at times and too quiet depending on where you are. Between the bleating of sheep, the impact of hooves of horses on the asphalt, religious chants and the roar of traffic, the impression of being in a whirlwind of parasitic noise invades frequently my sound spheres. On the other hand, there are these sounds that I cannot catagorize, sounds to which we rarely pay attention, but these are sounds that are self-sufficient. Among these sounds for example, there is one that is produced by the laser machine of Kër Thiossane. Certainly this sound appears industrial but paradoxically it sounds like music to me at the same time.