Acolyte is a free software synthesizer developed by Presto. Available format(s): VST for Windows.
Acolyte is a monophonic synthesizer intended for the novice starting out on his/her voyage into the realm of sound creation.
Based on the classic Yamaha CS-01, it features a 1 VCO / 1 VCF / 1 ENV / 1 LFO architecture and a clear, intuitive front panel layout.
Like the original CS-01, it has no patch memories, allowing the player to find his/her own path to the sound he/she seeks.
http://presto.kohoutech.com