Tethys - Expressive Synth Keys: Kontakt Synth Instrument by Iamlamprey

The developer describes Tethys as nostalgic, and its noisy, idiosyncratic recordings are the core of that character. Noise and imperfection are part of the samples themselves rather than added afterward.

Multiple velocity layers respond to how hard you play, so dynamics shape the tone as you perform. Pitch-bend and filter cutoff are both mapped to the modwheel, giving you direct control over expression while playing.

Sixteen sound banks cover a wide range of textures. The randomize button generates an entirely new patch with a single click, which is useful when you need a starting point quickly.

The built-in effects all have automatable controllers, so you can draw movement into your sound over time within your Kontakt project.