"I've always liked 20syl's work," Porthé told Dezeen, "I sent him an animation, he liked it and composed a song for it."
The video starts at an atomic scale, with cube-shaped electrons orbiting a larger nucleus.
The cubes begin to coalesce into larger particles and then morph into components of microchips, while the view constantly zooms out to reveal larger and larger structures.
"The images convey what the music means and illustrate the construction and evolution of the song," said Porthé.
Presenting animated keyboards, computers, then buildings and cities, the video continues to zoom further outward until it passes through the solar system and out into the vastness of space.
Porthé explained the animation is intended to represent "a journey from the infinitely small to the infinitely big in a musical world".
A colour scheme of red, black and beige runs throughout the video, which is entirely presented in an isometric format – strictly using lines and edges that are vertical or angled 30 degrees from horizontal.
"Electronica is digital and organic," Porthé said. "The shapes are cubic Minimalist and the colour red represents the power of the sound."
The director created the images entirely using Abode Illustrator software and assembled them together into an animation with After Effects.
The music video took between four and five weeks to complete from conception to completion.
Back & Forth is taken from 20syl's Grounds II EP, released earlier this year.