Bojo Software
Bojo Software makes some freeware VST plugins for Windows
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Synth. Simple, easy to use interface - 16 voice polyphony - 1, 2 or 4 oscillators in each voice - True stereo mode - Two volume envelopes - 5 different oscillator...
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Virtual organ. Organ One is a 16 voice virtual organ for the PC VST platform. Simple to use, but capable of producing a large variety of high quality organ-sounds.