An iPhone app that replicates the sound and function of a theremin has been made available for download.
Developed by John Nordberg and Giosuè Russo, Theremin I/O allows users to capture the essence of a theremin using the motion sensing and light measurement capabilities of their iPhone camera. By simply moving their hand or any other object in front of the lens, users can create sounds which can be customised into an essentially infinite array of possibilities using the app’s range of presets. The app can be downloaded here, whilst there is also a MIDI controller upgrade available for a small fee. Check out the app in action below.