Jarkko Ahtisaari is an electronic project from the Drone Music studio dealing with very slow spectral change. A single rich tone, usually a sawtooth wave or a band of noise, is shaped through banks of narrow filters whose centre frequencies drift independently, so different harmonics come forward and recede over time.
Pitch hardly changes while colour changes constantly, like light moving across a surface. The sound is focused and slightly metallic. The pieces suit concentrated listening, ideally in long sessions, and they work particularly well in 8D mixes, where each filtered band can occupy its own position in space.
