Harmless redefines synthesis by combining additive and subtractive techniques into a single powerful instrument. Unlike traditional subtractive synthesizers that filter generated waveforms, Harmless filters the timbre at the harmonic level before the sound is fully formed. This unique approach offers a fresh digital sound engine that operates on harmonics, allowing for precise shaping of tones and effects such as phasing and resonance with unprecedented control. The digital design embraces its artificial nature, delivering sound manipulation capabilities that go beyond typical virtual analog synths.

The synthesizer features an intuitive interface with all controls visible and color-coded, avoiding complexity while providing over 100 automatable parameters. It supports custom filter slopes defined in Hertz, unusual filter shapes, and direct control over each partial’s frequency, enabling creation of sounds that are difficult or impossible with conventional methods. Harmless also includes innovative modulation options like linking phaser output to partial frequencies and velocity-sensitive modulation, expanding creative possibilities for sound design.

Despite its advanced additive engine, Harmless maintains efficient CPU usage comparable to traditional subtractive synths, even when generating hundreds of harmonics simultaneously. It also comes equipped with a suite of effects including chorus, delay, reverb, a multi-band compressor/limiter, and a powerful unison feature. These additions enhance the synth’s sonic capabilities, making it suitable for a wide range of musical styles and production needs while delivering distinctive digital textures.