JAS-I — Khorlo

Khorlo's synth view: a 3D glass cylinder with eight strings and eight lit pluckers, plucker cards on the left and string cards on the right.

November 2026 · Release

Get the beta

KHORLO 0.9.04

Khorlo is a rhythmic synthesizer with 8 independent pluckers and strings. 0.9.04 brings a new interface that uses far less CPU, tuning and MPE, and a smoother, more accurate sound engine.

“A new instrument is so instantly addictive that you need a reminder to put it down and write something.”
James Nugent, Bedroom Producers Blog ↗

“Khorlo is a synth that shows that there are still new ideas to be found amidst the recent flood of new releases.”
Synth Anatomy ↗

New

Khorlo's interface floating over pink and blue light, under the words KHORLO BASS VOL. 1 in neon.

For Khorlo · October 2026 · Presets

Listen

Basses Vol. 1

Thirty-six free bass presets for Khorlo.

New

A dark, rocky shoreline under storm clouds, with KHORLO ATMOSPHERES VOL. 1 lettered over it.

For Khorlo · October 2026 · Presets

Listen

Atmospheres Vol. 1

Thirty-six free atmospheres and pads for Khorlo.

About

I’m Aaron Jasinski, JAS-I is my audio software project. I’ve been an artist, illustrator, UX/UI designer, and music producer for thirty years. With JAS-I I’m bringing all my passions together to explore the crossroads where imagination meets sound. I’m interested in creating music tools that are inspiring and travel unusual paths.

[email protected] for questions, bug reports, and requests for features.

Press kit for writing about Khorlo.

Thanks for testing: SIL3NCE, MadMcMan, jakehawken, Marcus, NWSM, Michael H, Michael C, Olivier B and IV.

Khorlo is free. If it’s useful to you, you can support it on Ko-fi.

Donate on Ko-fi