Image Cred: Kompose Audio

Kompose Audio has released Glowtone Keys, a new Soundbox instrument built from the Piano 1 preset of the Roland JX-8P. The pack is priced at $6, though Kompose is currently offering it free with any product purchase through May 31.

The pitch here is simple: classic mid-80s Roland key tone in a small, playable Soundbox instrument. Glowtone Keys includes four preset variations and installs as a 575 MB extracted Soundbox pack. It requires Audiomodern’s free Soundbox player, version 1.2.1 or higher, which runs on macOS, Windows, Linux, and iPadOS.

The JX-8P angle is the main draw. Released in the mid-1980s, the Roland JX-8P became known for its digitally controlled oscillators, analog tone, and Roland chorus. The Piano 1 preset sits between electric piano and synth keys, with a softened attack and a slightly chorused finish that can work in pop, ambient, soundtrack, synthwave, and mellow electronic writing.

Roland JX-8P Keys For Soundbox

Glowtone Keys keeps the concept focused. This is not a large multi-instrument collection or a complicated synth engine. It is a compact sample-based key instrument designed around one recognizable source, presented in a format that loads quickly and gives users enough shaping control inside Soundbox.

That is probably the right move for a sound like this. The value comes from the immediacy of the tone, especially for producers who want a usable JX-8P-style key patch without opening a larger workstation, browsing through a large preset folder, or building a chain from scratch. Load the pack, play the part, then shape it inside the Soundbox interface.

Soundbox gives users access to ADSR controls, effects, modulation, an arpeggiator, layer controls, and a vector pad for moving through layers. That gives Glowtone Keys enough flexibility for basic sound design, arrangement work, and performance-based editing without making the instrument feel overbuilt.

Glowtone Keys For Soundbox

The platform support also helps the release. Glowtone Keys works inside Soundbox across VST3, AU, AAX, and standalone formats on Windows and macOS, with AUv3 and standalone support on iPadOS. That gives producers a fairly wide range of use cases, from desktop sessions to iPad sketches.

The iPadOS angle is worth noting because Soundbox supports MPE and multi-touch. For a soft, chorused key sound, that can make the instrument feel more performance-friendly than a static preset inside a standard sampler. Small pressure, glide, and touch-based gestures can help the patch feel more responsive during writing sessions.

Glowtone Keys is a small release, though it fills a clear lane. It gives Soundbox users a low-cost way into JX-8P-inspired keys, and the current free-with-purchase offer makes it an easy add-on for anyone already looking at Kompose Audio’s catalog

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Will Vance is a professional music producer who has been involved in the industry for the better part of a decade and has been the managing editor at Magnetic Magazine since mid-2022. In that time period, he has published thousands of articles on music production, industry think pieces and educational articles about the music industry. Over the last decade as a professional music producer, Will Vance has also ran multiple successful and highly respected record labels in the industry, including Where The Heart Is Records as well as having launched a new label with a focus on community through Magnetic Magazine. When not running these labels or producing his own music, Vance is likely writing for other top industry sites like Waves or the Hyperbits Masterclass or working on his upcoming book on mindfulness in music production. On the rare chance he's not thinking about music production, he's probably running a game of Dungeons and Dragons with his friends which he has been the dungeon master for for many years.