Simple-Media has released Super Spook Keys, a free VSTi plug-in for Windows designed to re-create the sound of a Theremin; it offers control using either a MIDI keyboard or the mouse to drag the spot across the 'chart' for more authentic Theremin style play.

Features:

• Sine, sawtooth, triangle and pulse waves.
• Variable key in and out response.
• Added noise for more authentic sound.
• Adjustable scaling for mouse-play tuning.
• Spring on/off option.
• Basic waveshaping.
• MIDI CC assigned to grid cc#60(x) and cc#61(y).
• Spring off on switch so only one version needed this time around.
• Simple humanising effect (vary).
• Variable LFO for vibrato and tremolo.
• Pan, chorus (detuning), stereo spread and glide controls.
• Filtered, ping-pong, stereo delay.

There isn't any Super Spook Keys information on Simple-Media's website yet, although that should be rectified shortly. For now you can download it directly here.