UVI is offering Digital Synsations for free through March 13th, 2016 (a $199 value).
Digital Synsations includes over 500 patches expertly programmed on a fully restored Yamaha SY77, Korg M1, Roland D50 and Ensoniq VFX‚
Go to uvi.net, add Digital Synsations to your cart, and simply enter the code FREEDS in the "Vouchers" field at checkout.
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This used to be over 20GB but now 10GB. I am not sure if it
is worth my SSD storage. Since it's free, I am giving it a try.