
Audible Genius has released Primer, a free virtual analog synthesizer which is included in the demo version of their Syntorial learning software.
Primer is a synth equipped with the most essential controls and nothing more. Created by Audible Genius, it is an exact replica of the synth used in their flagship synthesizer training app, Syntorial.
Primer is available for free download via Syntorial (165 MB download size, ZIP archive, available for Windows & Mac).
To get the standalone version of Primer for free, launch the free demo of Syntorial (linked above) and select Options >> Launch Standalone Synth in the menu. The plugin version (both VSTi and AU) of Primer is included with the commercial version of Syntorial.
Primer is essentially a simple virtual analogue synthesizer which is intended as a learning tool. It is used to demonstrate the basics of subtractive synthesis and servers as a great beginner’s tool for people who would like to learn about programming synthesizers.
I wouldn’t recommend getting it if you’re experienced with programming synthesizers. On the other hand, if you’d like to learn to program your own synthesizer patches, this instrument could be used as a great starting point. The demo version of Syntorial includes 22 free lessons (there are 199 lessons in the full version) and this should be more than enough to get you started with synthesis.
Video Demo
Check out the Syntorial video review:

Links
Download Primer: click here