Gestrument

Gestrument AB operates at the intersection of music composition and interactive technology. The company develops applications for iOS that allow both professional and amateur musicians to create, improvise, and perform music through a gesture-based interface. The firm's core product, Gestrument Pro, is an evolution of the original Gestrument app released in 2012. It functions as a sophisticated tool that exists between a playable instrument and a pre-composed piece, enabling users to define a set of musical rules—such as scales, rhythms, and sounds—which then form a 'musical DNA' that can be manipulated in real-time.

The company was founded by Jesper Nordin, a distinguished Swedish composer with considerable international acclaim. Nordin's journey began with creating the tool for his own compositional work for ensembles and orchestras starting in 2007. His extensive background in classical, electroacoustic, folk, and rock music informed the development of the technology. The transition from a personal composition tool to a commercial app was driven by interest from universities and conservatories worldwide. Nordin collaborated with leading iOS developer Jonatan Liljedahl of Kymatica to completely reinvent the original app, leading to the launch of Gestrument Pro.

The business model centers on the sale of its applications on the Apple App Store. Gestrument Pro is offered as a free download, with the full suite of professional features unlocked via an in-app purchase. The target market includes professional composers, producers, performance artists, and musicians, as well as amateur music enthusiasts. The application allows for deep customization, featuring up to 16 virtual instruments controlled by up to 8 cursors on a screen, modular generators for pitch and rhythm, and extensive MIDI, Inter-App Audio, and Audiobus support to integrate with other hardware and software. The technology has also been leveraged by Gestrument's subsidiary, Reactional Music, to introduce generative music into the video game industry, creating dynamic soundtracks that respond to player actions.

Keywords: generative music, interactive music, music composition app, iOS music app, gesture-based instrument, music technology, Jesper Nordin, compositional tool, electroacoustic music, generative audio engine, real-time music generation, MIDI controller, music improvisation, sound design, interactive performance, Kymatica, Reactional Music, generative game audio, procedural music, music software