Vojtech Vesely (De Moi) is a Czech musician and sound artist, whose work with long decaying tones has been central to the development of the Drifting Intervals concept.

Born in South Moravia, Czechia, Vesely's musical journey was significantly influenced by a diverse array of musical philosophies and techniques. Drawing inspiration from the works of avant-garde composers like La Monte Young and experimental pioneers such as Terry Riley, Robert Fripp, and Pauline Olivieros, Vesely delved into the realms of drones, tape loops, and deep reverberation. This exploration culminated in the development of his concept known as Drifting Intervals—a technique characterized by the gradual fusion of multiple tones or intervals, creating a cohesive ambient texture. To illustrate the core principle of Drifting Intervals, Vesely suggests imagining random notes being slowly blended together, like rubbing different colors of paint until they merge into a new shade.