Spook Keys is a free rompler VST plugin developed by Simple-Media. Compatible OS(s): Windows.
Spook Keys is designed to re-create the sound of a ‘Theremin’ and can be controlled using either a MIDI keyboard or a mouse to drag the glowing spot across the ‘chart’ for more authentic ‘Theremin’ style play.
Spook Keys also includes the following features:
- Sine, sawtooth, triangle and pulse waves.
- Variable key in and out response.
- Variable LFO for vibrato and tremolo.
- Pan, chorus (detuning), stereo spread and glide controls.
- Filtered, ping-pong, stereo delay.
http://www.simple-media.co.uk/vsti.htm